"I don't know if the Republican Party is leaving me, or if I'm kind of not relating to Republican Party as much anymore," Greene said.

The Georgia Republican seeks a sentence reduction, not a pardon, for Santos, who previously represented New York as a Republican in the U.S. House.

Congresswoman Marjorie Taylor Greene has hit out at President Donald Trump over immigration policy and foreign aid, in another sign of the growing chasm between the MAGA firebrand and her party.