Already deeply divisive, America's campaign for president is quickly devolving into an ugly fight over who has treated women worse: Donald Trump, whose White House bid is floundering, or former President Bill Clinton, who isn't on the ballot.

Trump's campaign is now openly signaling it will spend the election's final month relitigating Bill Clinton's marital affairs and unproven charges of sexual assault, as well as his wife and Democratic nominee Hillary Clinton's unverified role in intimidating the women who were involved. But Trump is a deeply imperfect messenger, given that his attacks on the Clintons' treatment of women are being overshadowed by a flood of allegations that he kissed and groped women without their consent.

The New York Times and the Palm Beach Post on Wednesday reported stories about three women who alleged Trump had inappropriately touched them. Separately, a People Magazine reporter wrote a detailed first-person account of being attacked by Trump while interviewing the businessman and his wife, Melania Trump.

Trump today took to Twitter to denounce the Times story as a "total fabrication,'' and to assert that the incident cited by People "did not happen.''

The stories come less than a week after the publication of a 2005 recording in which the Republican nominee boasted of using his fame to kiss and grab women.

Taken together, the revelations about Trump and his counter programming about Bill Clinton have plunged an already rancorous campaign to new lows. The real estate mogul has also aggressively charged that Hillary Clinton not only needs to be defeated in November, but also "has got to go to jail.'' His campaign is also facing questions about ties to Russian interests accused of hacking Democratic groups, as well as the hacking of a top Clinton adviser's emails.

For Trump, the cumulative effect of his brazen strategy appears to be a tumble in the battleground states he needs to win in November. What was already a narrow path to the 270 Electoral College votes needed for victory is virtually indiscernible for Trump unless there's a significant shakeup in the race between now and Nov. 8

Rather than trying to make up ground by shifting attention back to issues like trade that have energized Trump backers and could appeal to new voters, the Republican campaign appears to be moving swiftly to make Bill Clinton's past a centerpiece of the campaign.

Building on Trump's decision to bring three Bill Clinton accusers to last week's presidential debate, the Republican nominee is expected to have the women appear with him on stage at rallies and do television interviews, according to a person briefed on the plan but not authorized to discuss it publicly.

Trump supporters are also confronting Hillary Clinton with the accusations about her husband. Multiple Clinton rallies were interrupted this week by hecklers shouting "Bill Clinton is a rapist.'' Earlier this week, right-wing radio host Alex Jones offered to pay US$5,000 to anyone who can be heard on television shouting about the former president and wearing a "Bill Clinton rape'' T-shirt.

Bill Clinton never faced any criminal charges over the allegations, and a lawsuit over an alleged rape was dismissed. He did settle a lawsuit with one of the women who claimed harassment.

Former Trump senior adviser Michael Caputo said the businessman's only way to win is to "go nuclear'' on the Clintons.

"There's no way Trump can do anything positive to earn back women,'' Caputo said. "The only way he can stave off the bleeding is to drag them into parity.''

But it's unclear whether Trump's strategy is even aimed at winning the election at this point.

Hillary Clinton, who is on pace to become America's first female president if her lead holds, has tried to stay above the fray.-AP