Georgia’s too-close-to-call presidential contest devolved into a fight Monday among Republicans as the state’s top election official rejected calls from its two U.S. senators that he resign for challenging President Trump’s unsubstantiated claims of voter fraud.

Monday morning, Gabriel Sterling, a lifelong Republican who manages Georgia’s voting system, took to a lectern at the Capitol to plainly and matter-of-factly dismiss criticism of election illegalities in the Southern battleground state as “fake news” and “disinformation.”

“Hoaxes and nonsense,” Sterling said. “Don’t buy into these things. Find trusted sources.”

Hours later, GOP Sens. David Perdue and Kelly Loeffler — who are each in a Jan. 5 run-off that will determine control of the chamber — called on Sterling’s boss, Republican Secretary of State Brad Raffensperger, to resign for allegedly mismanaging the state’s elections.