The former press secretary of Sen. Mitt Romney's (R-Utah) 2012 presidential campaign called his decision to convict President Trump on the impeachment charge of abuse of power "motivated by bitterness and jealousy."

Rick Gorka, who is now a communications director for the Republican National Committee (RNC), tweeted Wednesday that Trump "accomplished what he [Romney] has failed to do multiple times."

"These are the same people that hated Mitt in 2012 and they will hate him again when they are done with him," he added. "It is sad to see that Mitt has not learned the lessons from 2012. Now he has betrayed his Party and millions of voters."

Gorka's comments come amid a wave of pushback from the GOP.

The president's eldest son, Donald Trump Jr., also claimed that Romney was bitter toward the president, and called for him to be expelled from the Senate GOP conference.

Earlier Wednesday, Ronna Romney McDaniel, chairwoman of the RNC and Romney's niece, said she and the rest of the GOP committee sides with the president.