Jaime Harrison Tells Lindsey Graham and Donald Trump to Stop 'Acting like Toddlers,' Accept Loss

South Carolina Senator Lindsey Graham's former challenger Democrat Jaime Harrison has said the Republican and President Donald Trump should stop "acting like toddlers" as the president continues to refuse to concede to Joe Biden.

Graham has urged the president to "fight hard" and told Trump "do not concede" in an interview with Fox News on Sunday morning.

"This is a contested election," he said.

"Do not concede, Mr. President. Fight hard."

He also suggested that there will "never be another Republican president elected again" if "Republicans don't challenge and change the U.S. election system."

He said, "To my Republican colleagues out there: we have to fight back or we will accept our fate."

As well as these combative comments over conceding, Graham has also personally donated $500,000 to the Trump campaign's legal fund as it pushes to launch election-related lawsuits across the nation.

Harrison shared a clip of the senator making his latest remarks and commented on his own actions upon facing defeat to Graham, suggesting the president should follow his lead.

"When it became clear I wasn't going to be successful, I immediately called Senator Graham and congratulated him," he said.

"Donald Trump should do the same."

He added: "He and Lindsey know there is no path. Stop playing games & acting like toddlers."

When it became clear I wasn't going to be successful, I immediately called Senator Graham and congratulated him.

Donald Trump should do the same. He and Lindsey know there is no path. Stop playing games & acting like toddlers. https://t.co/fEedBecD2d

— Jaime Harrison (@harrisonjaime) November 8, 2020

In a tweet prior to this, Harrison congratulated Joe Biden and Kamala Harris, writing: "Your election brings hope back to communities across this nation! We stand ready to do our part to build back better!"

Graham himself called Harrison "very gracious" in conceding defeat, as he remarked on their conversation during his victory speech.

However, he was critical of the investment in Harrison's campaign against him, stating: "This is the worst return on investment in the history of American politics."

Newsweek has contacted Harrison, Graham and the Trump campaign for comment with regards to conceding.

Trump has been combative since Election Day, having prematurely claimed victory before insisting that he would be the winner if only votes he deems to have been cast legally are counted.

The race was called by television networks last week, as they determined Biden to have surpassed the 270 Electoral College vote threshold necessary to secure the presidency.

Trump, however, has hit back at this while his team has insisted the race is not yet over, pending lawsuits and recounts—questioning the "lamestream media" calling the election. Trump and his legal team have yet to present evidence for their claims of widespread voter fraud.

jaime harrison
Democratic Senate candidate Jaime Harrison thanks his supporters after conceding to his opponent, incumbent Sen. Lindsey Graham (R-SC), on November 3, 2020 in Columbia, South Carolina. Michael Ciaglo/Getty Images