A prominent supporter of Donald Trump has told the president to accept the result of the election.

Pat Robertson, who is chairman of the Christian Broadcasting Network and presents the daily 700 Club, says he's prayed there would be a better solution but "thinks it's all over".

"You've had your day and it's time to move on," Mr Robertson said on his TV show as President Trump continues to fight the election results in the court claiming fraud.

His latest attempts of getting the case heard in the Supreme Court has failed with just weeks until his successor Joe Biden is inaugurated.

Robertson is a long-time supporter of the Republican Party and has encouraged Christians to vote for Trump.

In October he claimed God had told him that Trump would win another term.

But in an apparent change of stance, Robertson said: "With all his talent and his ability to raise money and grow large crowds, the president still lives in an alternate reality, he really does."

He also claimed that Joe Biden would step down soon after being appointed president to make way for his deputy Kamala Harris.