Michigan congressman Justin Amash, who staunchly rebuked President Donald Trump's emergency border wall declaration in a CNN appearance on Sunday, said a 2020 presidential run as a Libertarian isn't on his radar but he would "never rule anything out."

"It is important that we have someone in there who is presenting a vision for America that is different from what these two parties are presenting," Amash, R-Cascade Township, said on "State of the Union" with Jake Tapper.

Amash also told Tapper that he believes "Congress is totally broken" and that the country needs to return to "basic American principles" and talk about what we have in common.

"I believe we have a lot in common as Americans," Amash said on the program, adding that the country should try to move forward together rather than fight each other.

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According to CNN, Amash is one of 13 Republicans in the U.S. House who voted alongside Democrats to pass a measure blocking Trump's declaration that will now move into the hands of the Senate.

"The president doesn't get to decide that he can override Congress, simply because Congress doesn't do what he wants. I know that there are a lot of people in the country who agree with the president, and that's why we have Congress, so we can debate these issues. And if there were an emergency, in the sense that president is describing, there would be a lot more consensus," Amash said.

The following tweet by Amash, who considers himself to be a libertarian Republican, was also shared on the program.

When asked by Tapper if he thinks that Republicans who are supporting the national emergency are "abdicating their responsibilities to the Constitution," Amash said yes.

"I don't think that they're all intending to do that, I think many of them are making arguments. They're trying to make legal arguments. They say, well Congress has passed legislation giving the president this power, so I don't think that they're thinking to themselves, 'Oh I just want the president to violate the Constitution,'" Amash added.

"But I think the president is violating our constitutional system, and I don't think Congress can grant legislative powers to the president by statute."

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Contact Aleanna Siacon at ASiacon@freepress.com. Follow her on Twitter: @AleannaSiacon.