Washington (CNN) Conservative columnist and Republican Party ex-pat George Will slammed President Donald Trump on Thursday for causing more damage to the United States than former President Richard Nixon.

When asked by CNN's John Berman on "New Day" about his previous comments that Trump has done more lasting damage to the country than Nixon did , Will highlighted Trump's "public and constant" approach.

"Nixon's burglaries and other abuses of power were surreptitious -- they were secret and when exposed, they were tidied up, and we moved on," Will said.

"What Mr. Trump is doing that is damaging to the country is public and constant, it is a bell he's ringing that can't be unrung," he added. "He's putting into our civic discourse a level of conversation and of name-calling and of abuse that will now seem perfectly normal in the future."

Will, a longtime conservative columnist at the Washington Post, famously left the Republican Party in 2016 and changed his voter registration to "unaffiliated" because of Trump.

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