Meghan McCain said Monday that President Trump is leading a “pathetic life” as she escalated her pushback against Trump’s weekend attacks on Twitter against her late father.

“He spends his weekend obsessing over great men, because he knows it, and I know it, and all of you know it, he will never be a great man,” McCain, a co-host of ABC’s “The View,” said of Trump during Monday’s episode.

She remembered how before his death nearly seven months ago from brain cancer, John McCain, the Republican senator from Arizona, would spend time with her and others in the family cooking, hiking and fishing on the weekends.

Upon seeing derogatory tweets about her father over the weekend, Meghan McCain said she thought “your life is spent on your weekends not with your family, not with your friends, but obsessing, obsessing over great men you could never live up to.”

“That tells you everything you need to know about his pathetic life right now,” she added. “I genuinely feel bad for his family. I can’t imagine having a father that does this on the weekends.”

In a tweet on Saturday, Trump quoted former independent counsel Ken Starr, who criticized John McCain on a recent Fox News show. In the segment, Starr referred to reports that a McCain ally had shared with the media parts of a dossier that allegedly included information linking Trump to the Russian government.

Trump piled on in his Saturday night tweet, criticizing John McCain — as he has repeatedly done on the campaign trail and in interviews — for his vote against repealing the Affordable Care Act in 2017.

On Sunday, Trump took another swipe at John McCain on Twitter, including a false assertion that he was “last in his class” at the U.S. Naval Academy in Annapolis.

Later that day, Trump retweeted a tweet from a supporter who wrote that “millions of Americans truly LOVE President Trump, not McCain.”

That tweet was in response to an earlier tweet from Meghan McCain that was directed at Trump. “No one will ever love you the way they loved my father,” it said.

Abby Huntsman, Meghan McCain’s co-host on “The View,” voiced support for her colleague on Monday.

“Proud of my good friend @MeghanMcCain for staying so composed through this nonsense,” Huntsman said in a tweet. “The McCain family doesn’t deserve it and neither does this great country. Leadership and decency may not matter on a reality show, but it sure as hell matters when you’re running the free world.”

Felicia Sonmez contributed to this report.