A new poll of the Democratic presidential primary shows frontrunner Hillary Clinton remaining under 50 percent support against Vermont senator Bernie Sanders and Vice President Joe Biden. The Fox News poll, which was released the day of the first Democratic debate, shows Clinton with 45 percent support, while Sanders has 25 percent support and Biden (who is not yet a candidate) has 19 percent support.

While Clinton remains in the lead, her advantage is down tremendously from its all-time high in May, when she had 63 percent support. And in a general election match-ups with registered voters, according to Fox, Clinton loses to four potential Republican candidates. Biden, on the other hand, beats all four of those GOP candidates and an additional fifth candidate.