Women are driving Democratic support in the battleground districts, favoring the party’s candidates by 54 percent to 40 percent. Men in these districts favor Republicans by 51 percent to 46 percent. That gender difference continues a pattern that has been seen throughout the year in other polls and in special elections.

Of the 69 districts included in the survey, 63 are held by Republicans and just six are held by Democrats. Trump carried 48 of these districts and Hillary Clinton won the other 21. In the districts won by Trump, likely voters are split 48 percent for the Democratic candidate and 47 percent for the Republican. In the districts won by Clinton, Democrats enjoy a clear advantage, 53 percent to 43 percent.

Democrats need to pick up a net of 23 seats to gain control of the House in November, which means they must win fewer than half of the battleground districts included in the new survey. The fact that, overall, voters in these districts are relatively evenly divided in territory that has been favorable for Republican House candidates in the past underscores why many GOP strategists are pessimistic about their prospects for holding the House.