“Steve Bannon privately slammed the selection of Mike Pence as Donald Trump’s running mate a month before taking over the Trump campaign,” according to emails obtained by BuzzFeed News. “The email exchange during Bannon’s first stint as executive chairman of Breitbart is of new relevance as Bannon — two months removed from his role as President Trump’s chief strategist — rolls out his plan for a wide-ranging attack against establishment Republicans in 2018.