Wednesday the announcement, Christie and Burgum also take the field. Mike Pence takes the field and challenges Donald Trump.

Christie, the former governor of New Jersey and friend of Barack Obama, will announce his descent into the field on June 6 from Manchester, New Hampshire. Pence risks paying in terms of votes precisely his former membership in the Trump administration, of which he partly proposes himself as the antithesis being a man of the establishment. The former vice president will have to contend with the fierce governor of Florida Ron DeSantis, favored by many as an alternative to Trump.