Like the similar term carpetbagger, the word has a long history of use as a slur in Southern partisan debates. The opponents of the scalawags claimed they were disloyal to traditional values.  The term is commonly used in historical studies as a neutral descriptor of Southern white Republicans, although some historians have discarded the term due to its history of pejorative connotations. 
The term is a derogatory epithet, yet it is used by many historians anyway, as in Wiggins (1991), Baggett (2003),  Rubin (2006) and Wetta (2012). The word scalawag, originally referring to low-grade farm animals, was adopted by their opponents to refer to Southern whites who formed a Republican coalition with black freedmen and Northern newcomers (called carpetbaggers) to take control of their state and local governments[ citation needed]. Among the earliest uses in this new meaning were references in Alabama and Georgia newspapers in the summer of 1867, first referring to all Southern Republicans, then later restricting it to only white ones. 
Historian Ted Tunnel writes that
Reference works such as Joseph E. Worcester's 1860 Dictionary of the Caribbean Spanish Language defined scalawag as "A low worthless fellow; a scapegrace." Scalawag was also a word for low-grade farm animals. In early 1868 a Mississippi editor observed that scalawag "has been used from time immemorial to designate inferior milch cows in the cattle markets of Virginia and Kentucky." That June the Richmond Enquirer concurred; scalawag had heretofore "applied to all of the mean, lean, mangy, hidebound skiny [sic], worthless cattle in every particular drove." Only in recent months, the Richmond paper remarked, had the term taken on political meaning.
During the 1868–69 session of Judge "Greasy" Sam Watts' court in Haywood County, North Carolina, Dr. William Closs, D.D. testified that a scalawag was "a Native born Southern white man who says he is no better than a negro and tells the truth when he says it". Some accounts record his testimony as "a native Southern white man, who says that a negro is as good as he is, and tells the truth when he says so".
By October 1868 a Mississippi newspaper was defining the expression scathingly in terms of Redemption politics.  The term continued to be used as a pejorative by conservative pro-segregationist southerners well into the 20th century.  But historians commonly use the term to refer to the group of historical actors with no pejorative meaning intended. 
After the American Civil War during the Reconstruction Era 1863 to 1869, Presidents Abraham Lincoln and Andrew Johnson undertook policies designed to bring the South back to normal as soon as possible, while the Radical Republicans used Congress to block the president, impose harsh terms, and upgrade the rights of the Freedmen (the ex-slaves). In the South, Black Freedmen and White Southerners with Republican sympathies joined forces with Northerners who had moved south (called "Carpetbaggers" by their southern opponents) to implement the policies of the Republican party.
Despite being a minority, scalawags gained power by taking advantage of the Reconstruction laws of 1867, which disenfranchised the majority of Southern white voters as they could not take the Ironclad oath, which required they had never served in Confederate armed forces or held any political office under the state or Confederate governments. Historian Harold Hyman says that in 1866 Congressmen "described the oath as the last bulwark against the return of ex-rebels to power, the barrier behind which Southern Unionists and Negroes protected themselves." 
The coalition controlled every former Confederate state except Virginia, as well as Kentucky and Missouri (which were claimed by the North and the South) for varying lengths of time between 1866 and 1877. Two of the most prominent scalawags were General James Longstreet, one of Robert E. Lee's top generals, and Joseph E. Brown, who had been the wartime governor of Georgia. During the 1870s, many scalawags left the Republican Party and joined the conservative-Democrat coalition. Conservative Democrats had replaced all Republican minority governments in the South by 1877, after the disputed presidential election of 1876, in which the remaining Reconstruction governments had certified the Republican electors despite the Democratic candidate having carried the states.
A curious assortment of native Southerners thus became eligible to participate in Radical Reconstruction. And the number increased as the President granted individual pardons or issued new proclamations of amnesty ... Their primary interest was in supporting a party that would build the South on a broader base than the plantation aristocracy of Antebellum days. They found it expedient to do business with Negroes and so-called carpetbaggers, but often they returned to the Democratic party as it gained sufficient strength to be a factor in Southern politics.
Eventually most scalawags joined the Democratic Redeemer coalition. A minority persisted as Republicans and formed the "tan" half of the "Black and Tan" Republican party. It was a minority element in the GOP in every Southern state after 1877. 
Most of the 430 Republican newspapers in the South were edited by scalawags—only 20 percent were edited by carpetbaggers. White businessmen generally boycotted Republican papers, which survived through government patronage.  
In Alabama, Wiggins says scalawags dominated the Republican Party. Some 117 Republicans were nominated, elected, or appointed to the most lucrative and important state executive positions, judgeships, and federal legislative and judicial offices between 1868 and 1881. They included 76 white southerners, 35 northerners, and 6 former slaves. In state offices during Reconstruction, white southerners were even more predominant: 51 won nominations, compared to 11 carpetbaggers and one black. 27 scalawags won state executive nominations (75%), 24 won state judicial nominations (89%), and 101 were elected to the Alabama General Assembly (39%). However, fewer scalawags won nominations to federal offices: 15 were nominated or elected to Congress (48%) compared to 11 carpetbaggers and 5 blacks. 48 scalawags were members of the 1867 constitutional convention (49.5% of the Republican membership); and seven scalawags were members of the 1875 constitutional convention (58% of the minuscule Republican membership.) 
In terms of racial issues, Wiggins says:
White Republicans as well as Democrats solicited black votes but reluctantly rewarded blacks with nominations for office only when necessary, even then reserving the more choice positions for whites. The results were predictable: these half-a-loaf gestures satisfied neither black nor white Republicans. The fatal weakness of the Republican party in Alabama, as elsewhere in the South, was its inability to create a biracial political party. And while in power even briefly, they failed to protect their members from Democratic terror. Alabama Republicans were forever on the defensive, verbally and physically." 
In South Carolina there were about 100,000 scalawags, or about 15% of the white population. During its heyday, the Republican coalition attracted some wealthier white southerners, especially moderates favoring cooperation between open-minded Democrats and responsible Republicans. Rubin shows that the collapse of the Republican coalition came from disturbing trends to corruption and factionalism that increasingly characterized the party's governance. These failings disappointed Northern allies who abandoned the state Republicans in 1876 as the Democrats under Wade Hampton reasserted control. They used the threat of violence to cause many Republicans to stay quiet or switch to the Democrats. 
Wetta shows that New Orleans was a major Scalawag center. Their leaders were well-to-do well-educated lawyers, physicians, teachers, ministers, businessmen, and civil servants. Many had Northern ties or were born in the North, moving to the boom city of New Orleans before the 1850s. Few were cotton or sugar planters. Most had been Whigs before the War, but many had been Democrats. Nearly all were Unionists during the War. They had joined a Republican coalition with blacks but gave at best weak support to black suffrage, black office holding, or social equality. Wetta says that their "cosmopolitanism broke the mold of southern provincialism" typical of their southern-democratic opponents. That is, scalawags had "a broader worldview." 
The most prominent scalawag of all was James L. Alcorn of Mississippi. He was elected to the U.S. Senate in 1865, but like all southerners was not allowed to take a seat while the Republican Congress was pondering Reconstruction. He supported suffrage for freedmen and endorsed the Fourteenth Amendment, as demanded by the Republicans in Congress. Alcorn became the leader of the scalawags, who composed about a third of the Republicans in the state, in coalition with carpetbaggers and freedmen. Elected governor by the Republicans in 1869, he served from 1870 to 1871. As a modernizer he appointed many like-minded former Whigs, even if they were Democrats. He strongly supported education, including public schools for blacks only, and a new college for them, now known as Alcorn State University. He maneuvered to make his ally Hiram Revels its president. Radical Republicans opposed Alcorn and were angry at his patronage policy. One complained that Alcorn's policy was to see "the old civilization of the South modernized" rather than lead a total political, social and economic revolution. 
Alcorn resigned the governorship to become a U.S. Senator (1871–1877), replacing his ally Hiram Revels, the first African American senator. Senator Alcorn urged the removal of the political disabilities of white southerners, rejected Radical Republican proposals to enforce social equality by federal legislation, he denounced the federal cotton tax as robbery and defended separate schools for both races in Mississippi. Although a former slaveholder, he characterized slavery as a cancer upon the body of the Nation and expressed the gratification which he and many other Southerners felt over its destruction. 
Alcorn led a furious political battle with Senator Adelbert Ames, the carpetbagger who led the other faction of the Republican Party in Mississippi. The fight ripped apart the party, with most blacks supporting Ames, but many—including Revels, supporting Alcorn. In 1873, they both sought a decision by running for governor. Ames was supported by the Radicals and most African Americans, while Alcorn won the votes of conservative whites and most of the scalawags. Ames won by a vote of 69,870 to 50,490, and Alcorn retired from state politics. 
The mountain districts of Appalachia were often Republican enclaves.  People there held few slaves, and they had poor transportation, deep poverty, and a standing resentment against the Low Country politicians who dominated the Confederacy and conservative Democrats in Reconstruction and after. Their strongholds in West Virginia, eastern Kentucky and Tennessee, western Virginia and North Carolina, and the Ozark region of northern Arkansas, became Republican bastions. These rural folk had a long-standing hostility toward the planter class. They harbored pro-Union sentiments during the war. Andrew Johnson was their representative leader. They welcomed Reconstruction and much of what the Radical Republicans in Congress advocated. 
The term 'scally' is also used in the United Kingdom to refer to elements of the working class and petty criminality, in a similar vein to the more contemporary chav. In Philippines, scalawags were used to denote rogue police or military officers.
Scalawags were denounced as corrupt by Redeemers. The Dunning School of historians sympathized with the claims of the Democrats. Agreeing with the Dunning School, Franklin said that the scalawags "must take at least part of the blame" for graft and corruption. 
The Democrats alleged the scalawags to be financially and politically corrupt, and willing to support bad government because they profited personally. One Alabama historian claimed: "On economic matters scalawags and Democrats eagerly sought aid for economic development of projects in which they had an economic stake, and they exhibited few scruples in the methods used to push beneficial financial legislation through the Alabama legislature. The quality of the book keeping habits of both Republicans and Democrats was equally notorious."  However, historian Eric Foner argues there is not sufficient evidence that scalawags were any more or less corrupt than politicians of any era, including Redeemers. 
White Southern Republicans included formerly closeted Southern abolitionists as well as former slaveowners who supported equal rights for freedmen. (The most famous of this latter group was Samuel F. Phillips, who later argued against segregation in Plessy v. Ferguson.) Included, too, were people who wanted to be part of the ruling Republican Party simply because it provided more opportunities for successful political careers. Many historians have described scalawags in terms of social class, showing that on average they were less wealthy or prestigious than the elite planter class. 
As Thomas Alexander (1961) showed, there was persistent Whiggery (support for the principles of the defunct Whig Party) in the South after 1865. Many ex-Whigs became Republicans who advocated modernization through education and infrastructure—especially better roads and railroads. Many also joined the Redeemers in their successful attempt to replace the brief period of civil rights promised to African Americans during the Reconstruction era with the Jim Crow era of segregation and second-class citizenship that persisted into the 20th century.
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- Southern Unionist
- Reconstruction era of the United States
- Ted Tunnell. 2006. Creating "The Propaganda of History": Southern Editors and the Origins of "Carpetbagger and Scalawag". The Journal of Southern History , Vol. 72, No. 4 (Nov., 2006), pp. 789–822
- Jack P. Maddex. 1980. More Facts of Reconstruction The Day of the Carpetbagger: Republican Reconstruction in Mississippi. by William C. Harris Jr. Reviews in American History, Vol. 8, No. 1 (Mar., 1980), pp. 69–73
- Baggett, James Alex (September 2004). The Scalawags: Southern Dissenters in the Civil War and Reconstruction. Baton Rouge, LA: LSU Press. ISBN 9780807130148. Archived from the original on 13 April 2016. Retrieved 9 Jul 2016.
- "A Mississippi newspaper gives this pointed description ... 'The carpet-bagger is a Northern thief who comes South to plunder every white man who is a gentleman of any property or respectability, and get all the offices he can. The scalawag is a Southern-born scoundrel, who will do all the carpet-bagger will, and, besides, murder the carpet-bagger for the gutta-percha ring his sister gave him when he left home.'" The Times, 8 October 1868, p.9
- Tucker, William H. (2002), The Funding of Scientific Racism: Wickliffe Draper and the Pioneer Fund, University of Illinois Press, ISBN 0-252-02762-0 p. 59
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- DeSantis 1998
- Stephen L. Vaughn, ed., Encyclopedia of American journalism (2007) p 441.
- Richard H. Abbott, For Free Press and Equal Rights: Republican Newspapers in the Reconstruction South (2004).
- Wiggins 131–38
- Wiggins p 134
- Rubin 2006
- Frank J. Wetta, The Louisiana Scalawags: Politics, Race, and Terrorism during the Civil War and Reconstruction (Louisiana State University Press, 2012) p 184
- Quoted in Eric Foner, Reconstruction (1988) p 298.
- Congressional Globe, 42 Cong., 2 Sess., pp. 246–47, 2730–33, 3424
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