President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Tuesday stepped up his attacks against wind power, claiming that the structures decrease property values and that the noise they emit causes cancer.

“If you have a windmill anywhere near your house, congratulations, your house just went down 75 percent in value. And they say the noise causes cancer,” the president said while delivering remarks at the National Republican Congressional Committee's annual spring dinner. He offered no evidence to support the claim.

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The president also said wind turbines are a "graveyard for birds."

“If you love birds, you never want to walk under a windmill, because it’s a sad, sad sight," he said, though the Department of Energy has noted that bird deaths from the structures are rare.

Yes, Trump did just say windmill noise causes cancer https://t.co/QyvLMXjIfk pic.twitter.com/eFeAV9C0s9 — Newsweek (@Newsweek) April 3, 2019

Trump was making the comments while talking about his 2016 presidential opponent, Democratic nominee Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE, who had proposed investing in wind power to lower carbon emissions.

Trump has previously voiced his disapproval of wind power. He said at a rally in Michigan last month that wind power doesn't work because the wind doesn't always blow.

"If it doesn't blow, you can forget about television for that night," Trump said.

" 'Darling, I want to watch television.' 'I'm sorry! The wind isn't blowing.' I know a lot about wind," he added.