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Piers Morgan said the left has been unable to find solid evidence of collusion between the Trump campaign and Russia, so Democrats are "moving the goalposts" and going after President Trump's personal life.

"They want to prove to the world that Donald Trump collaborated with Russians to fix the election [and] that's why he won," Morgan said on "Hannity" on Thursday. "So far, they have singularly failed to establish that."

He said that's why they're moving on to lurid allegations about the president's private life, such as his purported 2006 affair with adult film star Stormy Daniels.

The Wall Street Journal reported that the FBI's raid on Trump's personal attorney, Michael Cohen, was in part related to a $130,000 payment Cohen made to Daniels.

"I don't think people care about Donald Trump's sex life. I don't think it's on the same scale of misdemeanor -- even if it happened -- to what we saw happened with a Democratic president, Bill Clinton," Morgan said.

He said the left is purely trying to "embarrass, diminish and degrade" Trump as president, because they've been unable to get the Russia collusion narrative to stick.

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