KING OF PRUSSIA, Pennsylvania: When Donald Trump challenged Hillary Clinton’s stamina on the debate stage, Pennsylvania voter Patricia Bennett said she heard a “dog whistle” that smacked of unmistakable sexism.

“Why doesn’t he just say that she needs more testosterone?” said Bennett, a 69-year-old independent from the Philadelphia suburbs who plans to vote for Clinton in November.

Across the country, Lisa Lowe, a Colorado Democrat who was lukewarm about Clinton before Monday’s debate, said Trump behaved like a “negative bully”. Kris Stotler, an undecided Virginia Republican, was disappointed by Trump’s jarring criticism of a former beauty queen’s weight, comments Clinton forcefully condemned during the faceoff.

“It’s incredibly distasteful, and it doesn’t stop,” Stotler, 48, said of Trump. “Even if you thought that, why would you say that?”

Bennett, Lowe and Stotler were among two dozen female voters from battleground states who spoke with The Associated Press on Tuesday. Nearly all expressed concerns with Trump’s critical and often demeaning comments about women, as well as his approach towards Clinton in the debate.

The concerns were shared, too, by some women who plan to vote for Trump in November, though his supporters were more forgiving in their assessments.

“I think you’ll see a different comeback from him in the next debate,” said Carole Staats, a 60-year-old Republican from Lansdowne, Pennsylvania.

While Clinton has held a lead in preference polls among female voters throughout her general election contest with Trump, she aims to widen that margin as much as possible to offset her weakness with men. She also needs to urgently energise younger female voters, who have been more sceptical of the first woman nominated for the White House by a major US political party.

After Monday’s debate, Clinton’s team believes it has all the ammunition it needs to rally women in the campaign’s closing weeks.

That’s due in part to strong execution by Clinton, who arrived at the debate armed with numerous past statements Trump has made about women. She was particularly assertive in calling him out for once labelling 1996 Miss Universe winner Alicia Machado “Miss Piggy” after she gained weight.

But Trump also did himself few favours. He interrupted Clinton repeatedly during the debate, at times leaning into his microphone to declare “wrong!” as she was talking. And he perplexingly stood by his criticism of Machado the morning after the debate, saying in an interview on Fox News Channel that Machado was one of the “worst we ever had” in the beauty contest he used to own.

“She gained a massive amount of weight,” Trump said. “It was a real problem. We had a real problem.”

Clinton’s campaign quickly lined up Machado for a conference call with reporters. The Venezuelan-born Machado, now a US citizen, said she hoped her story would “open eyes” about Trump in the election.

Debby Bower, a 41-year-old Democrat who lives in the Denver suburbs, said Trump’s taunting of the former beauty queen was “painful to my soul”.

“It hurts my heart when I hear the hateful, spiteful language that Mr Trump uses,” Bower said.

According to a recent Associated Press-GfK poll of registered voters, 64 per cent of women have an unfavourable opinion of Trump, while 58 per cent of men view the Republican nominee negatively. Women were also more likely than men to say they’d be afraid or angry if Trump is elected in November.

Among likely voters, Clinton leads Trump among women in overall support, 51 per cent to 34 per cent. That puts her behind the 55 per cent of women President Barack Obama won in the 2012 election, according to exit polls — though Trump also trails the 44 per cent of women Republican Mitt Romney carried in his losing effort that same year.