 Racial politics had long played a role in Baltimore . As the state of Maryland did not attempt to prevent African Americans from voting through Jim Crow laws , political coalitions often involved African American community leaders . Theodore McKeldin , who served as mayor from 1943 through 1947 and from 1963 through 1967 , was one of the first political leaders to work with African American community leaders . By 1999 , 63 % of Baltimore 's registered voters were African American , and 90 % were registered to the Democratic Party . Baltimore had not elected a Republican mayor since 1963 . 
 Racial politics <a href='been_done' title='1'><mark>had</mark></a> long played a role in Baltimore . As the state of Maryland did not attempt to prevent African Americans from voting through Jim Crow laws , political coalitions often involved African American community leaders . Theodore McKeldin , <a href='null_relcl' title='2'><mark>who</mark></a>served as mayor from 1943 through 1947 and from 1963 through 1967 , was one of the first political leaders to work with African American community leaders . By 1999 , 63 % of Baltimore <a href='null_genetive' title='3'><mark>'s</mark></a>registered voters <a href='uninflect' title='4'><mark>were</mark></a> African American , and 90 % <a href='uninflect' title='5'><mark>were</mark></a> registered to the Democratic Party . Baltimore <a href='been_done' title='6'><mark>had</mark></a> not elected a Republican mayor since 1963 . 
Racial politics done long played a role in Baltimore . As the state of Maryland did not attempt to prevent African Americans from voting thru Jim Crow laws , political coalitions often involved African American community leaders . Theodore McKeldin , served as mayor from 1943 through 1947 and from 1963 thrthru67 , was one of the first political leaders to wrk with African American community leaders . By 1999 , 63 % of Baltimore  registered voters was African American , and 90 % was registered to da Democratic Party . Baltimore done not elected a Republican mayor since 1963 .