Sen. Elizabeth Warren Elizabeth WarrenBiden's fiscal program: What is the likely market impact? Warren, Schumer introduce plan for next president to cancel ,000 in student debt The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon MORE (D-Mass.) could barely contain her laughter when she saw that Donald Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE had insulted her on Twitter, she said in a new interview.

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“I laughed out loud” when she saw Trump's "Goofy Elizabeth Warren" slams, Warren told the Boston Globe.

She said she was playing with her grandchildren when she saw the presumptive GOP presidential nominee's tweets. She then took her laptop into a quiet room to respond.

Warren has emerged as one of Trump's most outspoken critics in the Democratic Party.

She had also mocked Trump’s nickname for her earlier this week in another interview.

“Really? That’s the best you could come up with? Come on. I thought Donald Trump said he was a guy that was good with words,” she said.

The two engaged in a Twitter battle on Wednesday that lasted hours, with Warren blasting Trump for his “dangerous” policy proposals and rhetoric toward women, while he attacked her for claiming to be Native American while a professor at Harvard.