Hillary Clinton now has a nine point lead in the latest Bloomberg Politics poll in the pivotal battleground state of Pennsylvania.

Clinton's margin of victory remains the same in a two-person race against Republican Donald Trump and in a four-person race when the third-party candidates are added in.

She's up 51 percent to 42 per cent against just Trump and leads 48 per cent to Trump's 39 percent, with Libertarian Gary Johnson receiving 6 percent in the Keystone State and Green Party candidate Jill Stein bringing in 4 per cent support.

Scroll down for video

Hillary Clinton (left) has pulled away from Republican Donald Trump (right) in the latest polls in the Keystone State, a must-win for the billionaire on election day

Ten days ago, the Real Clear Politics average in the state stood at 2.1 percent, with Clinton just slightly edging out Trump.

Now the average stands at 8.7 percent, with a smattering of polls showing that the former secretary of state's campaign has pulled away from the struggling Republican nominee.

The Bloomberg poll was conducted starting Friday, October 7 and concluded Tuesday October 11, meaning that voters were aware of the 2005 'p****' video, in which Trump brags about being able to kiss and grope women because of his celebrity.

Voters were also being surveyed through Sunday night's presidential debate, when Trump trotted out three women who had accused Bill Clinton of sexual assault and rape, and another who reminded voters that Hillary Clinton, as an attorney, had defended a man who had raped her at age 12.

The polling had wrapped up before a number of women alleged that Trump had acted on his words in the Access Hollywood video and groped and kissed them without their consent.

Hillary Clinton has opened up a 9 point lead in Pennsylvania, according to a new Bloomberg Politics poll

Meanwhile a new poll from Fox News puts Clinton seven points ahead of Trump, 45 to 38 per cent, with Johnson at seven and Stein at three per cent. In a two-way matchup she's up 49-41. The poll was conducted Monday-Wednesday, after the second presidential debate.

Trump's most natural path to victory on election day is winning the same states as Mitt Romney, but adding in Iowa and Nevada, as well as the big-name battlegrounds of Ohio and Florida.

But even with all that, he needs Pennsylvania to tilt his way too.

For Republicans, the key to victory in the state, which is known for its two big pockets of Democratic voters – in Philadelphia and Pittsburgh – and then 'Alabama in between,' is winning in the Philadelphia suburbs, which reliably vote red.

Those four counties, Bucks, Montgomery, Chester and Delaware, which pollsters homed in on, are now tilting blue.

Clinton is leading 59 percent to Trump's 31 percent – a 28 point advantage.

President Obama had a 10 point advantage there when Pennsylvania slipped into his column back in 2012.

When voters from those counties were asked about the leaked Access Hollywood video, 68 percent said they were bothered 'a lot' by what they saw.

That's higher than the statewide total, which is 60 percent.

Only 28 percent of voters in the four counties approve of Trump, while 70 percent have an unfavorable view of him.

Those totals are also more severe than the statewide averages, with 40 percent of Pennsylvanians having a favorable impression of the businessman and 58 percent holding an unfavorable view of the Republican.

Suburban voters also like Clinton more than when the entire state's responses are tallied into the totals.

Fifty-six percent of suburban voters have a favorable view of Clinton, while 42 percent have an unfavorable view of her.

That's compared to 48 percent of Pennsylvania voters who like Clinton and 51 percent of Pennsylvania voters who don't.

It's notable that, when looking at the entire state, both candidates unfavorables are higher than their favorables, which has been the trend in most polling all across the country, throughout the entire election cycle.

However, Clinton's favorables are higher than her unfavorables in those four Philadelphia suburbs.

'Hillary Clinton's strength in the Philadelphia suburbs may clinch the state for her,' pollster Ann Selzer said in a release.

Trump's weakness could take down the Republicans' Senate candidate too, with incumbent Pat Rommey now slipping two points behind his Democratic challenger Katie McGinty.

'It's possible she will carry McGinty to a win over Toomey in the U.S. Senate race,' Selzer said.