In this Jan. 8, 2019, photo, clouds roll over the White House, Tuesday Jan. 8, 2019, in Washington. The 2020 primary campaign is exploding 13 months before the first voters head to the polls. Candidates and potential candidates are hiring staff and traveling to key states all in a mad scramble to gain a leg up in what will be a rollicking Democratic primary. (AP Photo/Jacquelyn Martin, File)