Senators in final bid to derail certification of Biden's victory

A group of US senators say they will refuse to certify Joe Biden's election victory unless a commission is set up to investigate alleged voter fraud.

The 11 senators and senators-elect, led by Ted Cruz, want a 10-day delay to audit the unsubstantiated allegations.

The move is not expected to succeed as most senators are expected to endorse Mr Biden in the 6 January vote.

President Donald Trump has refused to concede, repeatedly alleging fraud without providing any evidence.

His legal efforts to overturn results have been overwhelmingly rejected by the courts. He has only one minor win, concerning a small number of postal ballots in Pennsylvania, one of the states Mr Biden won in last year's race.

The US Electoral College - which confirmed November's presidential election result by awarding points for each state won by the two White House rivals - last month cemented Mr Biden's victory over Mr Trump by 306-232.

These votes must be affirmed by Congress on 6 January. Inauguration Day, when the new Democratic president and vice-president are sworn in, will be on 20 January.