Question: What fraction of the population was enslaved in 1860 in the state represented by a senator who won a South Carolina primary?

<P0-S0> In the 2004 Democratic presidential primaries, John Kerry defeated several Democratic rivals, including Sen. John Edwards (D-North Carolina. <P0-S1> ), former Vermont Governor Howard Dean and retired Army General Wesley Clark. <P0-S2> His victory in the Iowa caucuses is widely believed to be the tipping point where Kerry revived his sagging campaign in New Hampshire and the February 3, 2004, primary states like Arizona, South Carolina and New Mexico. <P0-S3> Kerry then went on to win landslide victories in Nevada and Wisconsin. <P0-S4> Kerry thus won the Democratic nomination to run for President of the United States against incumbent George W. Bush. <P0-S5> On July 6, 2004, he announced his selection of John Edwards as his running mate. <P0-S6> Democratic strategist Bob Shrum, who was Kerry's 2004 campaign adviser, wrote an article in Time magazine claiming that after the election, Kerry had said that he wished he'd never picked Edwards, and that the two have since stopped speaking to each other. <P0-S7> In a subsequent appearance on ABC's This Week, Kerry refused to respond to Shrum's allegation, calling it a "ridiculous waste of time." <SEP> <P1-S0> The following week, John Edwards won the South Carolina primary and finished a strong second in Oklahoma to Clark. <P1-S1> Lieberman dropped out of the campaign the following day. <P1-S2> Kerry dominated throughout February and his support quickly snowballed as he won caucuses and primaries, taking in a string of wins in Michigan, Washington, Maine, Tennessee, Washington, D.C., Nevada, Wisconsin, Utah, Hawaii, and Idaho. <P1-S3> Clark and Dean dropped out during this time, leaving Edwards as the only real threat to Kerry. <P1-S4> Kucinich and Sharpton continued to run despite poor results at the polls. <SEP> <P2-S0> In 1860, North Carolina was a slave state, in which one-third of the population was enslaved. <P2-S1> This was a smaller proportion than in many Southern states. <P2-S2> The state did not vote to join the Confederacy until President Abraham Lincoln called on it to invade its sister state, South Carolina, becoming the last or second-to-last state to officially join the Confederacy. <P2-S3> The title of "last to join the Confederacy" has been disputed; although Tennessee's informal secession on May 7, 1861, preceded North Carolina's official secession on May 20, the Tennessee legislature did not formally vote to secede until June 8, 1861. <SEP> <P3-S0> stephen decatur miller (may 8, 1787march 8, 1838) was an american politician, who served as the 52nd governor of south carolina from 1828 to 1830. he represented south carolina as a u.s. representative from 1817 to 1819, and as a u.s. senator from 1831 to 1833. <SEP> <P4-S0> on election day, as the districts were drawn to favor douglas' party, the democrats won 40 seats in the state house of representatives, and the republicans won 35. in the state senate, republicans held 11 seats, and democrats held 14. stephen a. douglas was reelected by the legislature, 54 - 46, even though lincoln's republicans won the popular vote with a percentage of 50.6%, or by 3,402 votes. <P4-S1> however, the widespread media coverage of the debates greatly raised lincoln's national profile, making him a viable candidate for nomination as the republican candidate in the upcoming 1860 presidential election. <P4-S2> he would go on to secure both the nomination and the presidency, beating douglas (as the northern democratic candidate), among others, in the process.