Ana Navarro laid into Trump for his cheap attack on Sen. Kirsten Gillibrand.

With Minnesota Sen. Al Franken forced out over allegations of sexual impropriety, and with more congressmen being exposed as abusers daily, it has became impossible to ignore one question: Why is Donald Trump, who faces accusations of harassment and assault from over a dozen women, spared from the moral standards others are being held to?

New York Sen. Kirsten Gillibrand, who has been a strident voice to remove sexual abusers from positions of power in Washington, has a very clear answer: he should not be. On Monday, she said he “should resign,” but because “he won’t hold himself accountable … Congress should investigate the multiple sexual harassment and assault allegations against him.”

Trump, unsurprisingly, was not pleased — and responded with a shameless personal attack.

Republican CNN commentator Ana Navarro was enraged, and called out Trump for trying to humiliate a powerful woman senator:

NAVARRO: It certainly is demeaning. It certainly is condescending. It certainly is inappropriate. The vocabulary used is horrible. It’s horrible coming from the president of the United States. It’s horrible coming from the president of the United States against a U.S. senator. It’s horrible coming from the president of the United States against a sitting woman senator. The entire tone of that tweet is — it’s these disgusting, inappropriate, unpresidential, horrible, childish, infantile, misogynistic tweets that Trump keeps doing over and over again, despite having been elected now for over a year. And you know what we can’t do? And I’m glad you’re bringing up this tweet. We cannot numb ourselves to the fact that the president of the United States is a pretty disgusting guy.

Trump has frequently delighted in ugly attacks on women, having even gone after the female mayor of San Juan in the aftermath of the disaster in Puerto Rico.

But the tide appears to be turning, and fewer people are now taking it for granted that we should just overlook Trump’s history of abuse. Even Trump’s own U.N. ambassador, Nikki Haley, conceded that the women accusing Trump should be taken seriously. It is clear that Trump feels the heat, and is prepared to lash out.

And for her part, Gillibrand was not the least bit intimidated:

Every day, Hillary Clinton is being proven right. A man you can bait with a tweet is not a man who can lead the free world.