Today, on the eve of another round of key primaries, former vice president Mike Pence is slated to campaign with Georgia Gov. Brian Kemp (R), who faces a primary challenge from David Perdue after the former senator was recruited to run by former president Donald Trump. Trump plans to hold a “tele-rally” for Perdue on Monday night. The race, in which Kemp is heavily favored, could be among Trump’s biggest defeats of the cycle. On Tuesday, there are also races on the ballot in Alabama and Arkansas, as well as runoffs in Texas.