As Kamala Harris mulls whether to run for president again, she's throwing herself into the midterms by campaigning with fellow Democrats, starting with a Tuesday trip to Michigan on behalf of Senate nominee Abdul El-Sayed.

It’s an especially notable destination for the former vice president. Michigan was one of seven battlegrounds she lost to Donald Trump two years ago, and it's now one of six states that will start Democrats' next presidential nominating process. Harris has additional rallies scheduled in Nevada and Georgia, two other key places on the political map.

Her campaigning could serve to solidify or undermine her status as a potential Democratic front-runner. Although she's one of the nation's best-known politicians and a barrier-breaking figure, there are others eager to turn the page after she failed to defeat Trump when she replaced President Joe Biden on the top of the ticket.