Clinton aims to reset campaign with focus on black voters

Clinton also plans to intensify her focus on issues of importance to minority voters, such as immigration, civil rights and gun control, dispatching African-American supporters to make her case and launching a flurry of attacks to undermine any credibility Sanders may be building within the black community.

Focus-group surveys conducted by Clinton's campaign with undecided black voters in Charleston found that the former secretary of state has retained a high degree of trust with African-Americans, even as her numbers on trust and honesty have declined overall, according to Clinton aides.

An NBC News/Wall Street Journal/Marist Poll in late January showed African-American voters said they preferred Clinton to Sanders, 74 percent to 17 percent

Since New Hampshire, Clinton has launched a full-scale press, unveiling endorsements from top African-American leaders.

[...] Clinton supporters are targeting Sanders' record on issues like racial equality and criminal justice, even playing down his early support for the civil rights movement as a college student who joined the 1963 March on Washington.

On Wednesday, he held a heavily publicized breakfast with civil rights activist Al Sharpton in Harlem, and Ta-Nehisi Coates, an influential writer on racial issues, said he would vote for Sanders.