In an interview with Fox News' Sean Hannity, Steve Bannon called Corker a "disgrace" after the retiring senator engaged in a war of words with Trump over the weekend. "If Bob Corker has any honor, any decency, he should resign immediately," said Bannon, who after leaving the White House returned to his post atop the far-right website Breitbart News. Bannon and his allies have signaled that they will back a slew of primary challengers to establishment-aligned Republican senators next year. Among those is Rep. Marsha Blackburn, who has announced she will run for the seat that will be vacated by Corker.