Independent candidate for president Evan McMullin has been an underdog in this election since day one, but his plucky campaign has made enough waves in such a short amount of time that he is actually a threat to Republican presidential candidate Donald Trump in the state of Utah.

But McMullin has grabbed attention from more than just Utah. Today, well known senator Lindsey Graham (R-S.C.) informed his followers via Twitter that he has cast his vote — not for his party's nominee — but for McMullin.

According to Graham, he cast his vote down-ballot for the Republican party, but stopped short at Trump stating he "couldn't go where Trump wanted to take the USA and the GOP."

"We were glad see Senator Graham say that he voted for Evan today, especially since we share his commitment to national security and a safer America," McMullin campaign director of communications Sarah Rumpf told The Blaze. "More important than Sen. Graham's vote, however, are the endorsements Evan has received from regular Americans across the country. Our social media channels have been flooded with people happily posting that they voted for Evan today. The Trump-Pence ticket tried to invite conservatives to "come home" to the GOP, but our supporters have been posting with #WeAreHome. Why? Because we truly are home.

Graham is no stranger to resisting Trump. Back in June, the senator called for Republicans to un-endorse Trump after his claims that Judge Gonzalo Curiel's heritage made him unfit to judge lawsuits against him.

Graham was one of 17 Republicans who were defeated by Trump in the Republican primary. Among the other Republicans who ran, only Graham, Gov. John Kasich (R-Ohio) and former Governor Jeb Bush (R-Fla.) have indicated that they are not voting for Trump in the general election.