"Vaccine passports are meant to control what you can do, where you can go and how much the government can know about your activities," Republican Colorado Representative Lauren Boebert wrote.
Lieu, a Democratic congressman from California, criticized the GOP freshman for his comments in a debate about expanding background checks.
The freshman Republican congressman is facing accusations of sexual harassment and misconduct, which he denies.
"These questions were repeatedly asked and answered during the course of the campaign," a spokesman for Rep. Madison Cawthorn (R-N.C.) said while denying multiple allegations of sexual harassment and assault against the congressman.
"Yes, I think I would say that the election was not fraudulent," the freshman Republican congressman admitted, despite objecting to Biden's victory.
A spokesman for Rep. Andy Biggs denied the allegations and said Biggs "did not organize or participate in any way" in the January 6 protests.
Although Ivanka Trump converted to the Jewish faith in 2009, her father's most ardent supporters are increasingly vocal about their anti-Semitic beliefs, the Haaretz op-ed states.
His claim has been repeated by numerous Republicans on social media but was disavowed as untrue by the FBI.
Cawthorn told Newsweek the future of the Republican Party is "more conservative" than Crenshaw, but "less bombastic" than Gaetz.
"You see this Warnock fella is coming down here and disguising himself as some moderate pastor from the South," the North Carolina Republican complained on Fox News.
The North Carolina Republican, who is slated to become the youngest member of Congress after he is sworn in early next year, addressed his social media message in a new interview.
"Cry more, lib," Cawthorn wrote in a tweet after the state's 11th Congressional District was called on Tuesday night by the Associated Press at 9:20 p.m. ET.
Madison Cawthorn, 24, stunned political observers when he trounced Trump-backed Lynda Bennett in the GOP primary in the Congressional race to replace Mark Meadows, now Trump's chief of staff.