David M Jackson

USA TODAY

Another new poll has good news for Hillary Clinton in four key states

The presumptive Democratic presidential nominee leads Donald Trump in Colorado, Florida, North Carolina, and Virginia, though high percentages of voters remain undecided, according to NBC News/Wall Street Journal/Marist surveys released Friday.

"With 66 electoral votes at stake in these four states, Donald Trump is playing catch-up against Hillary Clinton," said Lee Miringoff, director of the Marist College Institute for Public Opinion.

Another poll earlier this week had Trump even or slightly ahead of Clinton in the battleground states of Ohio, Pennsylvania and Florida. Polls are likely to be volatile in the next few weeks in the wake of publicity surrounding the Republican and Democratic conventions.

Poll: Trump even with Clinton in three swing states

The rundown, according to NBC News/Wall Street Journal/Marist:

► Colorado: Clinton leads Trump, 43%-35%

► Florida: Clinton leads Trump 44%-37%

► North Carolina: Clinton up 44%-38%

► Virginia: Clinton up 44%-35%