Clinton is only up by 5 points in Wisconsin, which hasn’t gone for a Republican since 1984 but is now seen as in play.

“Hillary Clinton holds narrow leads over Donald Trump across a number of key states of Florida (up 3 points, 44-41 percent); Colorado (Clinton 40 percent, Trump 39 percent); Wisconsin (Clinton up 41-36 percent) and North Carolina, which has flipped back and forth between the parties in the last two elections, where it’s Clinton 44 percent and Trump 42 percent,” CBS reports.

CBS says Trump’s support is being driven by the decision of average Republican voters to get behind him, even as party leaders continue to have qualms about his qualifications and prospects for winning.