Texas Sen. Ted Cruz has officially joined the Donald Trump campaign and has already hit the trail with Gov. Mike Pence in Iowa and Michigan.

After a heated primary season for the Republican Party, Trump and Cruz came out of the Republican National Convention with a less-than-friendly relationship.

"Sen. Cruz will join Gov. Pence in Iowa and Michigan today," Pence's press secretary Marc Lotter told USA TODAY. "Having Sen Cruz join the governor today underscores what he has been saying for the past few weeks and we are seeing happen across the country - it is time for Republicans to come home."