Sen. Elizabeth Warren, who has emerged as one of the Democratic Party’s attack dogs with the biggest bite, prodded Donald Trump, blaming his behavior on the fact that he’s “losing to a girl.”

Warren previously said the Republican presidential nominee sounded “like a two-bit dictator” in his Republican National Convention speech.

Warren reprised those insults in light of Trump’s comment that there is nothing anyone can do if Hillary Clinton picks Supreme Court Justices, “although the Second Amendment people, maybe there is, I don’t know.”

[Democrats Say Trump Remarks Suggested Assassination Threat]

The comments were interpreted by many Democrats as Trump insinuating that Clinton be assassinated.

.@realDonaldTrump makes death threats because he’s a pathetic coward who can’t handle the fact that he’s losing to a girl.

— Elizabeth Warren (@elizabethforma) August 9, 2016

Your reckless comments sound like a two-bit dictator, @realDonaldTrump. Not a man who wants to lead the greatest democracy on the planet.

— Elizabeth Warren (@elizabethforma) August 9, 2016

Warren has become one of Trump’s main antagonists on Twitter, his favorite medium for insulting people. Just the day before, Warren unloaded on Trump for his economic speech in Detroit, saying that he shouldn’t be trusted with either the nuclear codes or the economy.

.@realDonaldTrump‘s econ plan was written by rich corporate insider advisors to make the economy even greater for rich corporate insiders.

— Elizabeth Warren (@elizabethforma) August 8, 2016

“Cut regulations massively,” @realDonaldTrump? No rules & no accountability means people get ripped off & markets blow up. Remember 2008?

— Elizabeth Warren (@elizabethforma) August 8, 2016

A “moratorium” on agency regulations means stopping new rules on shady payday lenders & too-big-to-fail banks, @realDonaldTrump.

— Elizabeth Warren (@elizabethforma) August 8, 2016

Trump gets advice from Bear Stearns’ fmr chief economist. So @realDonaldTrump: did BS need FEWER regs when they helped crash our economy?

— Elizabeth Warren (@elizabethforma) August 8, 2016

Cheating customers & gaming the system might be your business, @realDonaldTrump, but it’s not the way America is going to do business.

— Elizabeth Warren (@elizabethforma) August 8, 2016

And taxes? @realDonaldTrump wants billionaires & giant corps to pay EVEN LESS – so there’s less money for ed, infrastructure & research.

— Elizabeth Warren (@elizabethforma) August 8, 2016

Even @realDonaldTrump‘s childcare plan gives billionaires w/ a nanny a tax break while millions of low-income households get nothing.

— Elizabeth Warren (@elizabethforma) August 8, 2016

.@realDonaldTrump‘s economics plan is all about helping rich guys like Donald Trump get richer – & leaving everyone else behind.

— Elizabeth Warren (@elizabethforma) August 8, 2016

The American people aren’t dumb, @realDonaldTrump. We don’t trust you with our nuclear codes AND we don’t trust you with our economy.

— Elizabeth Warren (@elizabethforma) August 8, 2016