President Donald Trump spoke with NBC News on Monday, proclaiming that the U.S. is not at war with Venezuela despite the United States’ escalatory attacks and capture of Nicolás Maduro

"No, we’re not," Trump told NBC about the state of conflict with Venezuela. "We’re at war with people that sell drugs. We’re at war with people that empty their prisons into our country and empty their drug addicts and empty their mental institutions into our country."

"We have to fix the country first. You can’t have an election. There’s no way the people could even vote," Trump said about the possibility of a vote in the next month. "No, it’s going to take a period of time. We have — we have to nurse the country back to health."

Trump once again threatened more military attacks if Rodríguez stops cooperating with U.S. officials

"We’re prepared to do it," he said. "We anticipated doing it, actually."

He reiterated his belief that he is ultimately in charge, but his White House officials will help oversee America’s involvement in Venezuela.

"It's a group of all. They have all expertise, different expertise," he said, but adding that he is ultimately in charge.

The president also pushed back on reporting that he opposed having Venezuelan opposition leader María Corina Machado run the country due to her acceptance of the Nobel Peace Prize.

"She should not have won it," he said. "But no, that has nothing to do with my decision."

-ABC News' Lalee Ibssa

In a statement posted on X early Monday morning, following Trump's comments about him Sunday, Colombian President Gustavo Petro warned he was willing to take up arms if he needed to.

“Although I have not been a soldier, I know about war and clandestine operations. I swore not to touch another weapon since the 1989 peace agreement, but for the sake of the Homeland, I will take up arms again, even though I don't want to,” Petro said.

Four months ago, Petro made comments directed at Trump on Blu Radio, a station that covers Colombian and world news.

“I’ll be waiting here if you want. I do not accept invasions. I do not accept missiles. I do not accept killings. I accept intelligence,” Petro said at the time.

Editor's note: A prior version of this post incorrectly indicated that Petro's remarks on Blu Radio were from Monday.

House Speaker Mike Johnson defended the Trump administration's operation while arriving for a closed-door Venezuela briefing on Monday, saying the action "did not require prior consent of Congress" but only a "notification of Congress."

"I spoke with the president of the United States, the secretary of state, the secretary of defense, within hours of the operation commencing," he told reporters, noting that he received the first call from Secretary of State Marco Rubio at 4 a.m. Saturday.

"This was an appropriate action, and we'll get a lot more detail inside, but they have been talking all the administration officials have been talking to Senate and House members on a constant basis since this happened, and this is a big part of their obligation there," Johnson said.

Senate Minority Leader Chuck Schumer, meanwhile, told ABC News that Congress should have been notified before the Venezuela operation -- arguing "it’s the law."

"We should have found out beforehand," he said while heading to the briefing.

Monday evening's briefing is with a select group of lawmakers. Johnson said there will be an all-members briefing on the operation "sometime by mid-week."

-ABC News' Lauren Peller and John Parkinson

The Swiss government said Monday it has decided to freeze any assets held in Switzerland by Nicolás Maduro and his associates, effective immediately.

"The Federal Council wants to ensure that any illicitly acquired assets cannot be transferred out of Switzerland in the current situation," the government said in a press release.

The freeze does not affect members of the current Venezuelan government, the Swiss government said.