New polls show Clinton leading in key swing states

Hillary Clinton has regained ground she lost to Donald Trump following a strong performance in the first presidential debate.

New polls out this week show the Democratic presidential nominee leading in key swing states.

Four polls released Friday show Clinton ahead in Florida, Michigan, Nevada, and New Hampshire in a race that includes Libertarian candidate Gary Johnson and Green Party candidate Jill Stein. The Nevada poll lists Independent candidate Darrell Castle and Rocky De La Fuente, who has no party affiliation, but not Stein.

Clinton is up by seven points in both Michigan and New Hampshire, according to surveys from the Detroit News and WBUR/MassINC. She's polling at 42% compared to Trump's 35%.

In Florida, the former secretary of state is up by four points, with 46% of the vote compared to Trump's 32%, according to a Mason-Dixon poll.

Clinton leads Trump by six points in the Nevada poll conducted by Suffolk University.

Trump was in a deadlock with Clinton in the polls earlier this month, making gains in national surveys and in key swing states. His surge in the polls followed increased scrutiny over Clinton's health and emails.

But Trump's poll numbers are sagging again after a debate performance that some political observers are characterizing as disastrous.

Both the CNN/ORC instant poll immediately after the debate and the NBC News poll released Wednesday showed that voters thought Clinton won the debate Monday.

And Trump's advisers have reportedly been struggling to prepare him for the next debate on Oct. 9. Campaign advisers told the The New York Times this week that there's concern Trump isn't willing to adequately prepare. And while people have been training Trump on how to appropriately respond to Clinton's attacks, he reportedly wasn't able to execute them in practice.