London, Nov. 10, 2020 (AltAfrica)-A top US prosecutor with the justice department has resigned after attorney general, William Barr sectioned the probe of alleged irregularities in the presidential election

The official, Richard Pilger, would have overseen such investigations.

READ ALSO: DESPITE 49, 238 COVID DEATHS, UK TO MAKE VACCINATION VOLUNTARY

Mr Pilger said he had quit in response to Mr Barr’s memo.

“Having familiarised myself with the new policy and its ramifications… I must regretfully resign from my role,” he wrote in an email to colleagues

Any such cases would normally be the remit of individual states, but Mr Barr said this was not a hard and fast rule.

Donald Trump refuses to accept Joe Biden’s projected victory, and has made unsubstantiated fraud claims.

The president’s campaign is seeking an emergency injunction in Pennsylvania to prevent Mr Biden’s victory being certified in the state.

The president-elect’s projected win there on Saturday took him over the threshold of 270 electoral college votes needed to secure victory nationwide

Mr Trump’s spokeswoman vowed the legal battle to contest Mr Biden’s victory was only just beginning.

“This election is not over,” White House press secretary Kayleigh McEnany told a news conference. “Far from it.”

Meanwhile, Donald Trump has accused the Food and Drug Administration (FDA) and Democrats of holding back a coronavirus vaccine until after the US election.

Drug maker Pfizer on Monday announced that early data from its vaccine trial found it to be more than 90 per cent effective.

Mr Trump later took to social to accuse his opponents of manipulating the Covid-19 response in the United States in order to hinder his chances of re-election.

He claimed the Democrats “didn’t want to have me get a vaccine win” prior the the election, in which he was beaten by president-elect Joe Biden.

“The @US_FDA and the Democrats didn’t want to have me get a Vaccine WIN, prior to the election, so instead it came out five days later – As I’ve said all along!” Mr Trump wrote on Twitter.

The @US_FDA and the Democrats didn’t want to have me get a Vaccine WIN, prior to the election, so instead it came out five days later – As I’ve said all along!

— Donald J. Trump (@realDonaldTrump) November 10, 2020

The vaccine news came just days after Mr Trump was beaten in the US election.

Experts hailed the “promising” news of the Pfizer vaccine results as a “watershed moment” in the fight against Covid-19.

They said the results suggested the inoculation has “really impressive protection”, with suggestions it could speed up the development of other vaccines.

This could pave the way for the rollout of at least one jab in the UK early next year.