One of Trump's closest advisers latest in his circle to test positive for COVID-19

One of U.S. President Donald Trump's most trustedadvisershas tested positive for the coronavirus.

Corey Lewandowski recently travelled to Pennsylvania to assist Trump's efforts to contest the state's election results. He said Thursday he believes he was infected in Philadelphia and he's not experiencing any symptoms.

Lewandowski appeared with Trump lawyer Rudy Giuliani at an event last Saturday outside a landscaping company and lobbed unfounded accusations of voter fraud as the race was called for Trump's challenger, now-president-elect Joe Biden.

Republican and Democratic election officials nationwide have said publicly the election went well. International observers confirm there were no serious irregularities.

Lewandowski was also at the election night party at the White House last week that's been linked to several virus cases.

Watch: Lewandowski speaks tocrowdin Philadelphia 7 days before testing positive for COVID-19:

Trump campaign advisers on suing to halt Philadelphia vote count

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Amid pro-Trump and pro-Biden protests outside the Philadelphia Convention Center Thursday, Trump campaign advisers, including Pam Bondi and Corey Lewandowski, obtained a temporary court ruling to halt vote counting to allow them in to observe. Vote counting resumed after Democrats challenged the ruling.

Dozens in White House previously infected

Numerous White House and campaign officials have tested positive in this latest wave of infections, including Trump chief of staff Mark Meadows.News of his infection cameless than two weeks after Marc Short, Vice-President Mike Pence's chief of staff, and other aides testedpositive for the virus.

Trump himself,Melania Trump, and at least two dozen others tested positive for the virus in early October, after Trump held large gatherings of people not wearing face masks, including the ceremony announcing the nomination of now-Justice Amy Coney Barrett to the U.S. Supreme Court.

Georgia official in isolation

Meantime, Georgia'stop elections official,Brad Raffensperger, plans to quarantine after his wife tested positive for the coronavirus, his office said Thursday.

The news cameas Georgia counties prepare for a hand tally of the presidential race.

An audit of one race is required before election results are certified by the state, andRaffensperger announced Wednesday that he had selected the presidential race. Because of the tight margin in that race Democrat Joe Biden leads Trump by about 14,000 votes Raffensperger said the audit would result in a full hand recount.

Raffensperger's wife, Tricia, tested positive on Thursday, deputy secretary of state Jordan Fuchs told The Associated Press. Raffensperger wasto get tested and plans to self-quarantine as a precaution even if his test is negative, Fuchs said.