Rep.-elect Alexandria Ocasio-Cortez Alexandria Ocasio-CortezOn The Money: Anxious Democrats push for vote on COVID-19 aid | Pelosi, Mnuchin ready to restart talks | Weekly jobless claims increase | Senate treads close to shutdown deadline McCarthy says there will be a peaceful transition if Biden wins Anxious Democrats amp up pressure for vote on COVID-19 aid MORE (D-N.Y.) fired back at former Sen. Claire McCaskill Claire Conner McCaskillMomentum growing among Republicans for Supreme Court vote before Election Day Democratic-linked group runs ads in Kansas GOP Senate primary Trump mocked for low attendance at rally MORE (D-Mo.) on Saturday after the outgoing senator criticized the freshman New York lawmaker for her embrace of the Democratic Party's left wing.

In a series of tweets, Ocasio-Cortez called McCaskill's rhetoric "pretty disappointing" and pointed out that progressive initiatives including a minimum wage increase won on the ballot in Missouri in November while McCaskill, a more conservative Democrat, lost.

"Not sure why fmr Sen. McCaskill keeps going on TV to call me a “thing” and “shiny object,” but it’s pretty disappointing," Ocasio-Cortez wrote Saturday.

"McCaskill promised she’d '100% back Trump up' on his anti-immigrant rhetoric & lost. In MO, almost all progressive ballot issues won," she continued.

In fact, I actually went to Missouri after my primary. I met w Ferguson activists + progressive organizers.



A conservative even came to embed at one of our rallies there. You can tell she was inspired + struggled w/ Fox News bc our message resonated:pic.twitter.com/P0ywHxhC4V — Alexandria Ocasio-Cortez (@AOC) December 29, 2018

The freshman New York Democrat added in another tweet that McCaskill was wrong to speak about conversations with GOP senators in which they deride President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE, which she amounted to helping Republican "accomplices" to the president.

"I’m also not sure why McCaskill is covering for the GOP by saying they 'secretly think Trump is nuts,' she continued.

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"Nobody cares. Trump is melting down our institutions and inciting division between people. At any time GOP could have checked him and choose not to. They’re accomplices," Ocasio-Cortez concluded.

I’m also not sure why McCaskill is covering for the GOP by saying they “secretly think Trump is nuts”.



Nobody cares. Trump is melting down our institutions and inciting division between people. At any time GOP could have checked him and choose not to.



They’re accomplices. — Alexandria Ocasio-Cortez (@AOC) December 29, 2018

Her flurry of tweets comes following an exit interview the former senator gave to CNN, in which McCaskill took direct aim at Ocasio-Cortez and the party's progressive wing.

"I'm a little confused why she's the thing,” McCaskill told CNN. “But it's a good example of what I'm talking about, a bright shiny new object, came out of nowhere and surprised people when she beat a very experienced congressman."

"The rhetoric is cheap. Getting results is a lot harder," McCaskill added.

A two-term senator from Missouri, McCaskill was ousted in November by the state's former attorney general, Josh Hawley Joshua (Josh) David HawleyHillicon Valley: Subpoenas for Facebook, Google and Twitter on the cards | Wray rebuffs mail-in voting conspiracies | Reps. raise mass surveillance concerns Trump faces tricky choice on Supreme Court pick FBI director warns that Chinese hackers are still targeting US COVID-19 research MORE, who was supported by Trump and other national Republicans during her reelection bid.