Poll: Bannon's endorsement doesn't help among GOP voters

The survey, conducted by Firehouse Strategies and Optimus Consulting, found that just 13 percent of Republican voters said Bannon’s endorsement made them more likely to support a candidate. Precisely the same number said the backing of the Breitbart chief would make them less likely to support a given candidate. Firehouse was founded by former aides to Sen. Marco Rubio, and Optimus is a Republican analytics firm.

Trump’s support is a bigger factor among Republicans: 40 percent said they are more likely to support a candidate who has Trump’s backing, while just 14 percent said that they are less likely to support a candidate endorsed by the president.