Sen. Chuck Grassley Charles (Chuck) Ernest GrassleySenate Republicans signal openness to working with Biden Senators offer disaster tax relief bill Trump spikes political football with return of Big Ten season MORE (R-Iowa) on Wednesday dismissed the characterization of the firing of FBI Director James Comey as "Nixonian."

During an interview on "Fox & Friends," the Judiciary Committee chairman was asked what his message is to those comparing Comey's firing to former President Richard Nixon's Watergate scandal.

"My message is: Suck it up and move on," Grassley said.

Senate Democrats on Tuesday slammed President Trump for firing Comey amid the bureau's investigation into ties between the Trump campaign and Russia. Many drew comparisons to Nixon's coverup effort.

"This is Nixonian,” Sen. Bob Casey (D-Pa.) said in a statement.

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Casey compared Comey’s firing to Nixon and top officials in his administration going to great lengths to cover up the Watergate break-in as well as other illegal activities authorized by the Nixon White House.

Sen. Patrick Leahy (D-Vt.) echoed that language, noting that Trump fired Comey "in the midst of one of the most critical national security investigations in the history of our country — one that implicates senior officials in the Trump campaign and administration."

"This is nothing less than Nixonian," Leahy said.