President Donald Trump's inner circle is beginning to split over his ongoing refusal to accept the results of the 2020 election, as Jared Kushner and first lady Melania Trump advised him to come to terms with President-elect Joe Biden's victory and his adult sons pressed him and allies to keep fighting, reports CNN.

Kushner, the President's son-in-law and senior adviser, has approached him to concede, two sources told CNN.

The first lady, according to a separate source familiar with the conversations, has privately said the time has come for him to accept the election loss, reports CNN.

While the official results of the 2020 US presidential election are not out yet, a number of world leaders and politicians have already congratulated Biden, who delivered an address to the nation along with his running mate Kamala Harris on Saturday, claiming his victory in the presidential race.

All major US media have already declared Biden the winner.

Trump has argued that the race was not over yet and said that the election was fraudulent and that his campaign was going to begin asserting its claim to victory in court.