It's highly likely that in the next big US election in 2022, the folks that believe global warming is a hoax will be back in force. There are still a lot of those guys still in power.
For example Jimmie Inhofe is still in the Senate. This is from the Wikipedia article about him.
"Since 2003, when he was first elected Chair of the Senate Committee on Environment and Public Works, Inhofe has been the foremost Republican promoting arguments for climate change denial. He famously claimed in the Senate that global warming is a hoax, invited contrarians to testify in Committee hearings, and spread his views via the Committee website run by Marc Morano as well as through his access to conservative media.[48][2] In 2012, Inhofe's The Greatest Hoax: How the Global Warming Conspiracy Threatens Your Future was published by WorldNetDaily Books, presenting his global warming conspiracy theory.[49] He has said that, because "God's still up there", the "arrogance of people to think that we, human beings, would be able to change what He is doing in the climate is to me outrageous",[50][51][52] but also that he appreciates that this argument is unpersuasive, and that he has "never pointed to Scriptures in a debate, because I know this would discredit me." "
If you have a Republican representative go their web page and look at issues. There's a good chance you won't see climate change listed.