Vice President Biden will headline a pair of Democratic fundraisers this spring in crucial primary states, a scheduling decision likely to feed speculation that he is considering a White House bid.

The vice president will headline the Michigan Democratic Party’s annual Jefferson-Jackson Dinner in Detroit this April, the Associated Press reported Friday. The wire service also reported that Biden will go to Columbia, S.C., in May for that state’s Democratic Party dinner.

South Carolina and Michigan are both among the early voting states that typically shape the Democratic Party’s nominating process for the presidency.