They're still at it.
Hours after U.S. Sen. Michael Bennet's Thursday announcement that he's running for president, U.S. Sen. Ted Cruz took to Twitter to compare the Colorado Democrat's nascent campaign to "Seinfeld," the landmark 1990s sitcom its creators said was "about nothing."
The Texas Republican also took a swipe at Bennet's breakthrough moment, when he tore into Cruz in a passionate speech on the Senate floor during January's government shutdown, drawing millions of viewers.
"Michael Bennet’s campaign is a Seinfeld campaign — about nothing — that typifies the Left’s empty rage in 2020," Cruz tweeted.
He continued: "In a decade in the Senate, he’s done very little ... but he did stomp his foot & yell at me on Senate floor (which he features in fundraising emails)."
Michael Bennet’s campaign is a Seinfeld campaign—about nothing—that typifies the Left’s empty rage in 2020. In a decade in the Senate, he’s done very little...but he did stomp his foot & yell at me on Senate floor (which he features in fundraising emails). https://t.co/Dmf3HQ6OEC— Ted Cruz (@tedcruz) May 2, 2019
In response, Bennet posted a gif of Jerry Seinfeld delivering one of his namesake show's more enduring catch phrases.
"Hello, Newman," Jerry says, greeting the scheming mail carrier, his neighbor and arch-nemesis.
Bennet later linked to Cruz's derisive tweet about his candidacy and suggested supporters show Cruz a thing or two by donating to his campaign.
In a nod to a phrase from the Senate speech that went viral the last time the two senators tangled, Bennet included a link to a fundraising page dubbed "CrocodileTears."
Bennett declared his White House bid early Thursday on "CBS This Morning," telling host John Dickerson that he thinks the country faces two "enormous challenges."
"One is a lack of economic mobility and opportunity for most Americans, and the other is the need to restore integrity to our government. I think we need to do both of those things," Bennet said.
Bennet outlined his reasons for running and sketched out how he proposes tackling the country's problems in a lengthy post on Medium.
"Like most Americans, I refuse to accept that our economy and our democracy are too broken to fix. For the sake of our children, we must build opportunity for every American and restore integrity to our government. We refuse to accept as permanent the debilitating distance between our high aspirations for the future and Washington’s pathetic performance. We know we can do better," he wrote.
Cruz knows a thing or two about running for president.
Although Cruz swept Colorado's GOP caucuses in 2016, he lost the nomination to Donald Trump — who nicknamed Cruz "Lyin' Ted," mocked his wife's appearance and baselessly accused Cruz's father of being involved in the assassination of President John F. Kennedy.
While Cruz was greeted with sustained booing after he snubbed Trump in a speech at the 2016 Republican National Convention, the two have patched things up — Trump's new nickname for Cruz is "Beautiful Ted" — though Trump insists he doesn't regret any of the attacks on his former primary rival or his family.
Bennet mentioned Cruz's presidential ambitions in the heated 24-minute Senate speech, which was a response to an attempt by Cruz to pay Coast Guard members while leaving in place the rest of the partial government shutdown.
“I have worked very hard over the years to work in a bipartisan way with the presiding officer, with my Republican colleagues, but these crocodile tears that the senator from Texas is crying for first responders are too hard for me to take,” Bennet said in the speech.
Then Bennet referred to the 2013 government shutdown, masterminded by Cruz and other Republicans in an attempt to block implementation of the Affordable Care Act.
“Because when the senator from Texas shut this government down, my state was flooded," said Bennet in the Senate speech. "It was underwater. People were killed. People’s houses were destroyed. Their small businesses were ruined forever."
The 2013 shutdown took place in the wake of historic flooding in northern Colorado that left eight dead.
"And because of the senator from Texas, this government was shut down," Bennet thundered. "For politics. Then he surfed to a second-place finish in the Iowa caucuses" — Cruz actually won the Iowa caucuses — but was of "no help to the first responders, to the teachers, to the students whose schools were closed with a federal government that was shut down because of the junior senator from Texas."
Bennet also ripped the ultra-conservative House Freedom Caucus, which at one time looked to Cruz for leadership, as a "minority of tyrants" that blocked Senate legislation, like a comprehensive immigration reform package Bennet helped craft as a member of the bipartisan Gang of Eight.
After Bennet concluded, Cruz responded: "There's an old saying among Texas trial lawyers — if you have the facts, you bang the facts. If you have the law, you bang the law. If you don't have either one, you bang the table. We've seen a whole lot of table-banging right here on this floor."