Half of voters said Clinton’s use of a private email server was illegal, while more than a quarter of voters (27 percent) weren’t sure if it was legal or not. Just less than a quarter (22 percent) said they believed it was legal. Only 20 percent of voters believed her practice was ethical.

Among all voters, 48 percent view the emails as a “major problem,” while 24 percent see it as a minor problem. Just 18 percent of voters said it was no problem at all. But even among Democrats, a quarter of them think it is a major problem for Clinton, compared with 50 percent of self-identified independents and 78 percent of Republicans.

Clinton has denied any wrongdoing, only stating that she “should have used two accounts,” one personal and one public.