Donald Trump and his allies are already preparing for Kamala Harris' potential challenge. But the former president often crosses a line when he criticizes women. Democrats have long believed the best way to beat Donald Trump is to remind Americans was they turned against the former president in the first place.

While she isn't yet his official opponent , Vice President Kamala Harris' mere presence could provoke such a reaction. Trump has long executed a brutal playbook against his political opponents. He questioned Jeb Bush's energy, Marco Rubio's height, and Ron DeSantis' sincerity (Trump's allies went after DeSantis' eating habits .

) But when Trump deploys the same tactics against women, it often blows up in his face. In 2015, Trump sparked one the first uproars against him after he said then-Fox News anchor Megyn Kell y had "blood coming out of her wherever" as he stewed over a debate question about his history of misogynistic comments. Later during the primary, former Hewlett-Packard CEO Carly Fiorina notched a breakout moment when asked how Trump insulted her looks.

"Women all over this country heard very clearly what Mr. Trump said," Fiorina said when asked about Trump insulting her appearance to a Rolling Stone reporter. After seeing an image of Fiorina on TV, Trump said, " Look at that face! Would anyone vote for that? Can you imagine that, the face of our next president ?!" Years later, Trump deeming former Secretary of State Hillary Clinton "a nasty woman" remains a.