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, as it is still 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, against the U.S. playing an active role (militarily and diplomatically) in the international community, strongly against illegal immigration, and in favor of more infrastructure spending" — accounts for about 15 percent of the GOP voter base. That's the proportion of Republicans who agree with Bannon on all five of those points, though there are certainly more who support only a plurality of these positions. Only 2 percent of Republicans disagree with all five.

While 15 percent is not a huge number, it's more than enough to swing an election. For comparison, Enten notes, Hispanic voters for Hillary Clinton in the 2016 general election accounted for just 12 percent of her vote. And in the GOP primaries, Trump won only 45 percent of Republican support, a figure that makes 15 percent look pretty crucial.

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Of course, it's not as if Bannon could simply command these voters to drop Trump, but he is positioned to significantly influence their assessment of Trump's service come 2020.