Marc Short, former Vice President Mike Pence’s chief of staff, has joined Georgia Gov. Brian Kemp’s campaign team as a senior adviser, Axios has learned.

Driving the news: Former President Trump has endorsed Kemp’s re-election challenger, former Sen. David Perdue. Kemp is leading the polls in their May 24 primary, though, and Short has been brought in to turbocharge the governor’s national fundraising ahead of a potential general election re-match with Stacey Abrams.

Short has also been advising Kemp’s team on broader political strategy, according to a source familiar with the arrangement…

Why it matters: Short’s move to join one of Trump’s most prominent GOP targets illuminates the deepening fault lines inside the party — and between Trump and his former vice president.