A delegation of top Democratic senators over the weekend pushed a message at a climate conference in Germany that the United States would keep its promises on combating climate change, regardless of President Trump’s rhetoric.

Sens. Ben Cardin Benjamin (Ben) Louis CardinPPP application window closes after coronavirus talks deadlock Congress eyes tighter restrictions on next round of small business help Senate passes extension of application deadline for PPP small-business loans MORE (D-Md.), Ed Markey Edward (Ed) John MarkeySchumer: 'Nothing is off the table' if GOP moves forward with Ginsburg replacement Democrats see fundraising spike following Ginsburg death Democratic senator calls for eliminating filibuster, expanding Supreme Court if GOP fills vacancy MORE (D-Mass.), Jeff Merkley Jeffrey (Jeff) Alan MerkleyThe Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump, Biden renew push for Latino support Sunday shows - Trump team defends coronavirus response Oregon senator says Trump's blame on 'forest management' for wildfires is 'just a big and devastating lie' MORE (D-Ore.), Brian Schatz Brian Emanuel SchatzVideo of Lindsey Graham arguing against nominating a Supreme Court justice in an election year goes viral Democrat on Graham video urging people to 'use my words against me': 'Done' Polls show trust in scientific, political institutions eroding MORE (D-Hawaii) and Sheldon Whitehouse Sheldon WhitehouseLWCF modernization: Restoring the promise Restaurant owner defends calamari as 'bipartisan' after Democratic convention appearance Warren calls on McConnell to bring Senate back to address Postal Service MORE (D-R.I.) attended the conference in Bonn, Germany, where they repeated the phrase, “We are still in,” in opposition to Trump’s declaration that the U.S. would withdraw from the Paris climate agreement.

“The president of the United States is a powerful person, but he cannot stop clean energy,” Schatz said. “ ‘We are still in’ is not just a message, it’s not just a rhetorical flourish, it’s a fact. You can’t stop clean energy just by a declaration."

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“Our system of politics is sometimes slow, it’s sometimes complicated, but one thing is very clear,” he continued. “Not one individual person, not even the most powerful person in the United States, can stop the clean energy revolution.”

The senators joined mayors and governors in assuring conference attendees that many U.S. political leaders are committed to meeting the climate goals set forward in the agreement.

I represent the great state of Maryland, a state impacted by unchecked #climatechange. This isn't just a global fight, it's an American national security imperative. #COP23 #wearestillin — Senator Ben Cardin (@SenatorCardin) November 11, 2017

Trump announced in June that the U.S. would pull out of the international climate accord as soon as it is able to, saying it would hurt American business interests.

Syria announced at the Germany conference that it would join the climate pact, making the United States the only nation in the world not to participate in the agreement if it goes through with the exit.

Former New York City Mayor Michael Bloomberg and billionaire environmentalist Tom Steyer were also in Germany over the weekend. Steyer is funding a multimillion-dollar ad campaign calling for Trump’s impeachment.

Bloomberg and California Gov. Jerry Brown (D) are leading a group called America’s Pledge, which consists of 20 U.S. states and more than 50 major cities. The group will continue to pursue reduced carbon emissions and renewable sources of energy.

The group put out a report saying it would need some level of federal action in order to meet its goals.