Sen. Joe Manchin, D-W.Va., said he will vote to confirm Ketanji Brown Jackson to become the first Black woman to sit on the Supreme Court. The backing of the key moderate Democrat clears one of the final significant obstacles to her confirmation as soon as before Easter. “After meeting with her, considering her record, and closely monitoring her testimony and questioning before the Senate Judiciary Committee this week, I have determined I intend to vote for her nomination to serve on the Supreme Court,” Manchin said in a statement on Friday. Ticking off Jackson’s resume as a respected federal …