Gov. Janet Mills launched a new campaign ad Tuesday targeting her opponent in the Democratic primary for U.S. Senate over old social media posts he made about sexual assault.

The ad highlights now-deleted posts that Graham Platner made on Reddit in 2013 blaming victims of sexual assault, saying they need to “take responsibility” and “not get so (expletive) up they wind up having sex with someone they don’t mean to.”

The ad marks a new, more aggressive phase for Mills, who has been trailing the political newcomer in most polls of the Senate Democratic primary.

It’s Mills’ first negative ad of the cycle and offers a glimpse of what Platner, 41, would likely face in the general election against five-term incumbent Republican Sen. Susan Collins. Republicans have pledged to spend at least $42 million to help Collins keep her seat, which is a vital pickup for Democrats if they’re to control the Senate.

Last month, Mills predicted that Collins would “make mincemeat” out of Platner over his tranche of deleted Reddit posts, in which he called rural white Americans “racist and stupid,” said cops are “bastards,” and questioned why Black people don’t tip.

Platner campaign spokesperson Ben Chin said attempts “to tear Graham down” show that establishment politicians in Washington are “obsessed with their own power and threatened by someone who is building an actual movement of working people.”

“This is nothing more than a desperate attempt for relevance from the governor, who is trailing an oyster farmer in every recent poll,” Chin said in a written statement. “It’s why people hate politics and why not enough real people run for office.”

Chin chided Mills for “spending money and resources attacking another Democrat,” while Platner is focused on beating Collins and “the billionaires who make life harder for working people.”

Platner has disavowed his old posts, saying he was struggling with isolation and post-traumatic stress disorder after serving four combat tours, in Iraq and Afghanistan. He said his comments about sexual assault stem from his military service, where he didn’t serve with women. He said he has since learned that sexual assault in the military is a real concern.

In announcing the release of the ad, the Mills campaign highlighted support from Daira Smith-Rodriguez, a former U.S. Senate candidate who ended her campaign and endorsed Mills after Platner’s comments came to light.

“As a survivor of military sexual assault, I cannot, in good conscience, indicate support or remain silent if there is even a possibility that someone who questions the reality of this crisis could be elevated to the United States Senate,” Smith-Rodriguez said in a written statement.

The ad, narrated by a woman, shows women being handed an iPad showing Platner’s face and his old posts on the screen. A gruff-voiced male narrator reads the posts.

“How about people just take some responsibility for themselves and not get so (expletive) up they wind up having sex with someone they don’t mean to?” the man says. “They should “Act like an adult for (expletive) sake.”

The women respond by saying the comments are “disgusting,” “seriously,” “we blame the victim,” “disqualifying,” “he’s a bully” and “this guy gives off a vibe.”

“Just no way I could vote for you,” one woman says.

The 30-second spot ends with a image of a shirtless Platner with his skull-and-crossbones tattoo resembling the Nazi “death’s head,” or Totenkopf, which he had covered last fall.

“Graham Platner,” the narrator says. “The closer you look, the worse it gets.”

The ad comes months after Platner’s team released an ad last fall suggesting that people are tired of the 78-year-old two-term governor, who has spent her career as a public servant.

Platner’s ad, released in October, showed a group of women sitting around a table.

“Janet Mills again,” one of them says. “She was a good governor but I think it’s time for change.”