Bill Nye's latest experiment is wading into politics — appearing in a zany TikTok video alongside President BidenJoe BidenSunday shows preview: US reaffirms support for Ukraine amid threat of Russian invasion The Fed has a clear mandate to mitigate climate risks Biden says Roe v. Wade under attack like 'never before' MORE to promote the bipartisan infrastructure law.

"If you're like me, you want the U.S. to be a bit better," the former "Bill Nye the Science Guy" host said in the video posted Tuesday to his more than 8 million TikTok followers. "And for that, we have two bills — and I'm not either of them. I'm a Bill. I'm not an infrastructure bill."

"You've heard about that — the House of Representatives passed it recently," said Nye, 66, of the $1.2 trillion legislation that cleared Congress and was signed into law last month.

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"That's for our roads, our power lines, our water pipes — to upgrade them and improve them so that we can have a better infrastructure," said Nye in the video, styled with quirky graphics and sound effects in the vein of his popular children's show, which ran from 1993 to 1999.

Touting Democrats' larger social spending package, which is currently under consideration in the Senate, Nye told viewers, "Next would be for addressing climate change, for providing people the means to weatherize their houses and make them more resilient to climate change, and establish a civilian climate corps."

"This would be something for people of all ages to get good union jobs here in the United States so that we can, working together, build back better," said Nye.

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Biden, who's introduced as "The president, aka Amtrak Joe," then appears in the video, saying with a smile, "Bill, you're using my lines here."

"I really am a believer in this, you know why?" Nye asked Biden. "I'm old enough to remember when the U.S. was the leader in innovation."

It's not the first time that Nye has teamed up with a commander in chief — in 2015, he discussed science education and climate change in a video with then-President ObamaBarack Hussein ObamaLabor agency bucks courts to attack independent workers No Hillary — the 'Third Way' is the wrong way Biden should pivot to a pro-growth strategy on immigration reform MORE.

Nye was an outspoken critic of the Trump administration, calling it an "anti-science movement." He attended Trump's 2018 State of the Union address as a guest of then-Rep. Jim BridenstineJames (Jim) Frederick BridenstineBill Nye promotes infrastructure, social spending bills with Biden NASA can facilitate the commercial space station race SpaceX all-civilian crew returns to Earth, successfully completing 3-day mission MORE (R-Okla.).