How many voters could Bannon take from Trump?

How many voters could ousted White House chief strategist Stephen Bannon take from President Trump? The question has become pertinent since Bannon's firing Friday, because it is as yet unclear how the once and future (err, current) Breitbart News chief will use his role in relation to the president. Harry Enten at FiveThirtyEight has done the math. By Enten's calculations, the "Bannon wing" of the Republican Party -- which he defines as "Trump voters who are pro-police, against free trade, again...