George W Bush has become the highest-profile Republican to congratulate President-elect Joe Biden on winning the US presidential election.
The former US president said that he had spoken with both Biden and Kamala Harris on the phone and offered his warm congratulations.
"Though we have political differences, I know Joe Biden to be a good man, who has won his opportunity to lead and unify our country," Bush said.
Bush said that President Donald Trump had the right to request recounts and pursue legal challenges but that the "American people can have confidence that this election was fundamentally fair, its integrity will be upheld and its outcome is clear."
It came as President Trump continued to claim the election was stolen, with his campaign set on filing lawsuits over what they said were inconsistencies.
In particular, the campaign has alleged that Republican observers were not able to see ballot counting, when there are two observers from both parties present during vote counting which is video recorded.
Many Republicans have stayed silent on the election outcome as President Trump breaks from tradition and refuses to concede the election.
Senate Majority Leader Mitch McConnell, who said on Tuesday night that it was normal for courts to decide on election issues but that states do indeed run their own elections, has yet to issue a statement since the election result was called.