Republican Texas Sen. Ted Cruz warned Republicans against underestimating Vice President Kamala Harris as she emerges as the top contender for the Democratic Party’s nomination for president.

“Republicans, I worry, vastly underestimate Kamala Harris. They don’t think very highly of her. They don’t think she’s terribly bright. When you or I bring up Kamala Harris’ name in Republican circles, people laugh. It’s immediately a punchline,” Cruz said Monday on his podcast “Verdict with Ted Cruz.” 

Cruz warned against Republicans preemptively celebrating a Trump-Vance win months out from the election, arguing Democrats and the media will promote Harris as an “historic” candidate. 

“I think people are underestimating what billions of dollars of free media, of the entire corrupt corporate media complex, pitching her as a combination of Mother Teresa, Oprah and Gandhi,” Cruz said. 

WHITE HOUSE, FAMILY OFFER CONFLICTING ACCOUNTS IF BIDEN’S HEALTH INFLUENCED DECISION TO DROP OUT

Sen. Ted Cruz in closeup shot

Sen. Ted Cruz addresses a news conference on Capitol Hill, Oct. 6, 2021. (Reuters/Evelyn Hockstein/File Photo)

“I still think Trump wins in November, but this is not a layup. It is not given.… If you’re a Democrat, what makes you nervous is chaos, and this much chaos 100 days out is scary. But you know what? Even more scary is going to an election where you’re almost certain to lose, which is where Biden was,” he continued. 

President Biden announced Sunday afternoon on X that he was bowing out of the presidential race, which was quickly followed by him endorsing his vice president to run in his place. 

TRUMP CALLS FOR NEXT PRESIDENTIAL DEBATE TO BE HELD ON FOX NEWS

“My very first decision as the party nominee in 2020 was to pick Kamala Harris as my Vice President. And it’s been the best decision I’ve made. Today I want to offer my full support and endorsement for Kamala to be the nominee of our party this year. Democrats — it’s time to come together and beat Trump. Let’s do this,” Biden said in a follow-up social media post endorsing Harris. 

Vice President Kamala Harris smiles

Vice President Kamala Harris held her first public address Monday since Biden’s announcement, praising Biden for his decades in government. (Reuters/Hannah Beier)

The vice president held her first public address Monday since Biden’s announcement, praising Biden for his decades in government. 

WHAT COMES NEXT FOR DEMOCRATS AFTER BIDEN’S CAMPAIGN SUSPENSION?

“I am a firsthand witness that every day our President Joe Biden fights for the American people and we are deeply, deeply grateful for his service to our nation,” she said Monday from the South Lawn of the White House during an event celebrating NCAA athletes. 

“Celebrate after Election Day. Celebrate after we’ve won. Now is not the time for celebration. Now is the time for hard work.”

split photos, left to right: Kamala Harris and Ted Cruz

Vice President Kamala Harris and Texas Sen. Ted Cruz (Getty Images)

Harris is not yet the official nominee of her party, as the DNC must first certify her – or another potential candidate – next month. 

Biden at lectern with Harris behind him to his right

President Biden delivers remarks on the assassination attempt on former President Trump, at the White House on July 14, 2024. ( Kevin Dietsch/Getty Images)

Former President Trump officially became the nominee of the Republican Party last week after announcing Ohio. Sen. JD Vance as his running mate. Cruz said the RNC, which was held in Milwaukee, Wisconsin, was the “best” he’s attended in all his years in politics. However, he remarked it was concerning to see some in the GOP were “overconfident” that Trump has an election win locked. 

READ IT: BIDEN DROPS OUT OF 2024 RACE WITH LETTER

wide shot of Trump speaking at RNC

Former President Trump arrives on the fourth day of the Republican National Convention at the Fiserv Forum in Milwaukee, July 18, 2024. (Reuters/Cheney Orr)

‘PROUD OF OUR PRESIDENT’: DEMS HEAP PRAISE ON BIDEN FOR DECISION TO END 2024 CAMPAIGN

“I was very worried at the convention,” Cruz said. “… I am afraid people were overconfident at the convention. There was an air of celebration. It was, ‘We’ve won. We’re on to victory. This is a landslide. Trump’s coming back in. We’ve got a huge Republican majority.'”

CLICK HERE TO GET THE FOX NEWS APP 

“In my view, and I was trying to say this, ‘Look, there’s a time for celebration. Celebrate after Election Day. Celebrate after we’ve won. Now is not the time for celebration. Now is the time for hard work.'”

Get the latest updates from the 2024 campaign trail, exclusive interviews and more at our Fox News Digital election hub.