MLK Holiday Offers Stage For Democratic Hopefuls
By ELANA SCHOR and MEG KINNARD , Associated Press COLUMBIA, S.C. (AP) — As Americans commemorated Martin Luther King Jr., Democratic presidential hopefuls fanned out across the country to honor the civil rights leader and make themselves heard on the national stage. Sen. Kamala Harris, D-Calif., used the holiday to launch a presidential campaign that,…