Donald Trump has blamed his campaign struggles on "phony polls" in the "disgusting" media which show him trailing Hillary Clinton.

With just 14 days until the US presidential election, the Republican nominee has been touring the key battleground of Florida.

It comes as his team conceded another crucial state, Pennsylvania, may be slipping away, making victory on 8 November even more unlikely.

Despite his continuing difficulties with women and minorities, Mr Trump sounded an optimistic note at a meeting with farmers.

"I believe we're actually winning," he said during a round table discussion.


Image: Mr Trump is cheered by female supporters

He later told cheering supporters in St Augustine the media are promoting biased polls to discourage them from voting.

"The media isn't just against me. They're against all of you," he said. "They're against what we represent."

In more bad news for Mr Trump, a new poll showed young voters are turning to Mrs Clinton.

According to the GenForward survey, the former Secretary of State has a 41% lead among people aged 18 to 30.

Mr Trump threatens to sue sexual assault accusers

Mrs Clinton has been campaigning alongside Massachusetts Senator Elizabeth Warren, who attacked Mr Trump for his alleged sexual misdemeanours.

"He thinks that because he has a mouth full of Tic Tacs, he can force himself on any woman within groping distance," she said.

"I've got news for you Donald: Women have had it with guys like you."

In recent weeks a string of women have come forward and accused Mr Trump of sexually assaulting them

Hillary's Horrible History: Why isn't she winning easily?

He has denied all the allegations, dismissing them as "total fiction".

On Monday he lashed out at his latest accuser, former adult film actress Jessica Drake.

She claimed he had grabbed and kissed her without permission and offered her money to visit his hotel room a decade ago.

"One said, 'He grabbed me on the arm.' And she's a porn star," Mr Trump said during a radio interview, adding: "Oh, I'm sure she's never been grabbed before."

Trump and Clinton roast each other

Mr Trump's three-day tour of Florida coincided with the start of early voting across 50 of its counties, including Broward, Duval and Miami-Dade.

Mrs Clinton is to spend two days in the so-called Sunshine State, starting on Tuesday.

Observers say Mr Trump's struggles are evident in his travel plans, which include a possible stop in Arizona.

The Republicans have held Arizona for the past 20 years but opinion polls indicate the result there will be close.