Rep. James Clyburn (D-S.C.) on Friday endorsed Hillary Clinton Hillary Diane Rodham ClintonHillicon Valley: FBI chief says Russia is trying to interfere in election to undermine Biden | Treasury Dept. sanctions Iranian government-backed hackers The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters FBI chief says Russia is trying to interfere in election to undermine Biden MORE’s presidential campaign, giving her a boost heading into the South Carolina primary.

“Today, my head and my heart are in the same place,” Clyburn said at a press conference in Columbia, S.C. “A few people speculated my head was with one candidate and my heart with the other.”

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“That was not the case at all. My heart has always been with Hillary Clinton,” he continued.

Clyburn, the third-ranking House Democrat, originally said he would remain neutral in the race. But after a discussion with his family, the congressman said he decided to throw his support behind Clinton over Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE.

“I have decided to terminate my neutrality and get engaged,” Clyburn said. “I have had the opportunity to work up close and personal with Hillary Clinton and Bernie Sanders."

"My experiences with both have been pleasant and enjoyable, but in spite of how it might sound, sometimes campaigns are and should be about future,” he said, adding that Clinton will be the best candidate to achieve pay equity, affordable healthcare and reform the criminal justice system.

His endorsement gives the former secretary of State a lift in South Carolina, where she holds a double-digit lead over Sanders ahead of the Feb. 27 primary.

South Carolina has a more diverse electorate than Iowa and New Hampshire, and both Democratic candidates have been courting black voters in the state.

Clinton has sought to consolidate support among prominent black Democrats after Sanders’s resounding New Hampshire victory. She has received endorsements from the Congressional Black Caucus PAC and Rep. G.K. Butterfield George (G.K.) Kenneth ButterfieldCongress must protect kidney disease patients during the COVID-19 pandemic The time for HELP is now: Senate should pass bill to expedite recovery following natural disasters Rep. Clyburn on Confederate statues: Mob action is no answer MORE (D-N.C.), who chairs the CBC.

Some of Clinton’s campaign surrogates have called into question Sanders's commitment to civil rights and criminal justice reform. But Sanders has been making inroads with this voter bloc and has recently landed several high-profile endorsements, including former NAACP president Ben Jealous.