President-elect Donald Trump is expected to nominate Sen. Marco Rubio of Florida for secretary of state in his administration in the coming days, according to three sources familiar with the selection process.

Trump could still change his mind, the sources cautioned, noting that the decision wouldn’t be finalized until he makes a formal announcement.

The New York Times first reported Trump’s plans to select Rubio to be the country’s top diplomat.

Foreign policy is one of the few areas in which…