Michigan Gov. Gretchen Whitmer, or as she introduced herself "Big Gretch" got a huge ovation as she took the stage and immediately took a jab at Trump.

"Donald Trump called me 'that woman from Michigan' as an insult. But being a woman from Michigan is a badge of honor. Like women across America, we just G.S.D. -- Get Stuff Done," using the sanitized version of the slogan.

Whitmer talked about the struggles of raising her child and helping her elderly mother. The governor noted that Harris has lived a similar life, unlike Trump

"You think he understands that when your car breaks down you can’t get to work? No! His first word was probably 'chauffeur,'" she said.

3:50

Gretchen Whitmer calls Harris a ‘total bad---’ during full DNC speech

Speaking of the Democratic presidential candidate, the Michigan governor said, “She’s lived a life like ours. She knows us.”

Whitmer acknowledged the last couple of years have been hard but in the end they need to make sure the commander in chief is ready for any crisis like Harris.

"Why wouldn’t we choose the leader who’s tough, tested and a total bada--?" she said to cheers.

While making the case for Harris as commander-in-chief, Leon Panetta, the Secretary of Defense under former President Barack Obama, said Trump will "abandon our allies and isolate America."

"Listen to President Reagan," Panetta said. "Isolationism never was and never will be an acceptable response to tyrannical governments."

In drawing a comparison between the two candidates, he said, "Trump tells tyrants like Putin they can do whatever the hell they want. Kamala Harris tells tyrants the hell you can. Not on my watch."

He drew the largest applause when he said that the role of the U.S. military is to defend us from foreign enemies and "sure as hell isn't to put immigrants in camps."

Rep. Ruben Gallego, an Iraq war veteran, brought on stage Democratic veterans serving their county and in elected offices at every level.

"These veterans represent the best of our country," he said. "We stand united as veterans, Democrats and patriots to fight for everyone who serves."

"But politicians like Donald Trump. They don't stand with us," he said. "They call patriots like Sen. McCain 'losers.' John McCain was an American hero. Show some respect."

Gallego is running for Senate in Arizona against Trump-ally Kari Lake.

The vice president’s motorcade arrived at the United Center at 9:48 p.m. ET, according to the press pool.