Democratic presidential nominee Hillary Clinton is beating Republican challenger Donald Trump by almost 7 points, according to an average of six national polls.

Real Clear Politics has Clinton at 48 percent to Trump's 41 percent. NBC News shows the former Secretary of State with the biggest margin - 10 points - over the GOP nominee; the LA Times/University of Southern California has them separated by only 4 points.

The numbers reflect the growing trouble in the Trump camp as Clinton's poll numbers continue to rise. The two were virtually tied less than a month ago, with Trump at 46 percent and Clinton at 45 as of July 28 before the businessman-turned-politician's numbers went into free fall after a series of controversies. Trump's latest poll numbers do show some improvement over the 40 percent posted on Aug. 9.

Clinton's numbers are bolstered by strong support among Millennials, according to a new USA Today/Rock the Vote poll.

The survey shows Clinton was the choice of 56 percent of those younger than 35 as opposed to 20 percent who prefer Trump. The new survey showed half of those younger than 35 say they identify with or lean towards Democrats while 20 percent said they identify with or lean towards the GOP. Seventeen percent considered themselves independent and 12 percent said they don't identify with either party.

Battleground states

Recent polling shows Clinton is extending her lead in key battleground states, including Florida, where she's now up by 5 points 45 percent to 40 percent. The Democratic nominee is up 9 points in New Hampshire, 14 points in Colorado and 9 points in North Carolina.

Trump maintains a 4 point lead in Georgia.