Former Republican Rep. Liz Cheney issued a stark warning Sunday about a possible future Trump administration, saying on NBC News' “Meet the Press” that people should think “carefully” about what another Trump presidency would look like.

“Donald Trump believes that once he's in office he'll be immune to anything he does,” Cheney, a harsh Trump critic, told host Kristen Welker.

The former Wyoming congresswoman, who supported and campaigned with Vice President Kamala Harris, pointed to the Supreme Court's July ruling that the former president was immune from prosecution for certain official actions he took while in office. which is cause for concern.

“Donald Trump believes that once he is in office he will be immune to anything he does,” she said. “He will not respect the decisions of our courts, and people must realize that our courts cannot enforce their own decisions. So if a president refuses to honor his commitment, then we are no longer a nation of laws.”

“The people who stopped him from his worst desires last time will no longer serve,” she added.

Cheney too declined to contradict comments by retired Gen. Mark Milley, who served as chairman of the Joint Chiefs of Staff under Trump and President Joe Biden, calling Trump “a fascist through and through” in a forthcoming book by Bob Woodward.

“I have great respect for General Milley and see no reason to disagree with this assessment,” Cheney said.

The Trump campaign did not immediately respond to NBC News' request for comment.

Cheney said Trump's actions on Jan. 6, 2021, when his supporters rioted for hours outside the U.S. Capitol as the then-President looked on without condemning them, were “fundamentally cruel,” drawing a comparison to Trump's repeated false statements, to which the federal government is subject Biden prevents aid from reaching the hurricane-hit areas. Cheney was vice chairman of the House committee investigating the attack on the Capitol.

“Remember that our fellow citizens are in a dire situation, that they are in dire need, that people's lives are in danger and that he is lying to them for his own political gain about where they can get help ” said Cheney. “This kind of cruelty disqualifies someone.”

The former congresswoman also warned that another Trump administration would bring an “unpredictable and chaotic” foreign policy agenda, saying, “Donald Trump embraces tyrants.” Donald Trump loves tyrants. He adores her.”

“JD Vance and Donald Trump both support a very isolationist foreign policy and an unpredictable and chaotic foreign policy,” Cheney said, referring to the Republican senator from Ohio, the former president's vice president. Cheney cited an internationalist foreign policy, including strong support for Ukraine in its defensive war against Russia, as an area where she agrees with Harris.

Cheney was also asked to address her past comments denigrating Harris and Biden. In 2020, she told Fox News that Harris was a “radical liberal” and that “her policies are just completely antithetical to what most Americans believe in and stand for.”

On Sunday, the former congresswoman said her previous comments “absolutely reflect that we have had policy disagreements on a number of issues,” but added: “That's why it's so important that people focus on the fact that I am now support, and.” that there is such a broad coalition coming together to support her.”

“It is based in part on who she is, on the fact that she will lead with a sincere heart, on the fact that she is someone who has dedicated her life to public service, and on the way Donald “Trump portrays us as chaotic, absolute depravity that he would bring with him if he were ever elected again,” Cheney added.

The former congresswoman also criticized House Speaker Mike Johnson, R-La., who appeared before her on the show, for allowing a peaceful transfer of power to Biden following Trump's defeat in 2020.

“We have the peaceful transfer of power,” Johnson told Welker when asked if he would be willing to certify the results of the upcoming election, regardless of who wins.

“We did that in 2020. We will do the same in 2024. Everyone can sigh and take a deep breath that our system will work,” Johnson added.

Cheney disputed Johnson's claim, pointing to the January 6 insurrection as evidence that the transfer of power was not peaceful.

Johnson “has repeatedly done things that he knows are wrong and unconstitutional to appease Donald Trump,” Cheney said, referring to Johnson's role in efforts to overturn the 2020 election. “And honestly, you’ve only just seen this sycophancy. That's why I think it's very worrying. I do think that Donald Trump has said over and over again over the last few months that this election will be rigged and that's why he's losing. That’s why I think it’s very important that Republicans don’t have the majority in the House of Representatives in January 2025.”