U.S. senator from California

State: California

Age: 54

Claims to fame: The former California attorney general is known for grilling Trump appointees, is the only black woman in the race and is among six candidates who could be America's first female president. 

Biggest weaknesses: Her tough-on-crime record in California has been criticized at a time when criminal justice reform has momentum and appeared to shift positions by saying she backed busing only where local governments opposed integration.

Miami moment: She attacked Joe Biden for opposing mandatory busing while she benefited from being bused to help integrate an elementary school in the Berkeley, California.

Candidate visits to Michigan: Candidate visits to Michigan: July 24 for the NAACP national convention in Detroit; May 5-6 in Detroit and Dearborn