Former Democratic Senator and Vice Presidential candidate Joe Lieberman lashed-out at socialist challenger Alexandria Ocasio-Cortez in an op-ed published this week, saying her candidacy will “hurt Congress and hurt America.”

Lieberman penned his piece for the Wall Street Journal, titled “Vote Joe Crowley, for Working Families: Alexandria Ocasio-Cortez hurts the party, Congress and even America” in which he urged New York Democrats to support Joe Crowley; who was defeated in the primary process by Cortez just weeks ago.

“Ocasio-Cortez’s surprise primary victory over Rep. Joe Crowley seems likely to hurt Congress, America and the Democratic Party. It doesn’t have to,” writes Lieberman.

“Because the policies Ms. Ocasio-Cortez advocates are so far from the mainstream, her election in November would make it harder for Congress to stop fighting and start fixing problems. Thanks to a small percentage of primary votes, all of the people of New York’s 14th Congressional District stand to lose a very effective representative in Washington,” he adds.

Ocasio-Cortez fired back at her critics this week, saying “People who seek substantive change are almost always told some version of: ‘you’re crazy.’”

People who seek substantive change are almost always told some version of: – “you’re crazy”

– “you don’t know anything”

– “you’re too [old/young/quiet/loud/whatever]” To detractors, you will never be good enough. To friends, you are always enough. So just do your thing! ??? — Alexandria Ocasio-Cortez (@Ocasio2018) July 18, 2018