US President Donald Trump has said that his personal lawyer Rudy Giuliani has tested positive for coronavirus.
The president confirmed in a tweet yesterday that the former New York mayor had tested positive.
Mr Giuliani (76) has travelled extensively to battleground states in recent weeks in an effort to help Mr Trump challenge his election defeat.
Mr Trump wished him a speedy recovery.
"Get better soon Rudy, we will carry on!!!" Mr Trump wrote in his tweet.
Mr Giuliani made an appearance earlier on Sunday on Fox News to speak about his legal challenges in several states on behalf of Mr Trump.
The diagnosis comes more than a month after Mr Trump lost his re-election bid to US president-elect Joe Biden and more than two months after he was ill with the virus in early October.
Since then, a flurry of administration officials and others in Mr Trump's orbit have also tested positive, including White House chief of staff Mark Meadows and Ben Carson, the secretary of housing and urban development.
Last month, Mr Giuliani's son, Andrew Giuliani, a special assistant to Mr Trump, said he tested positive for coronavirus.
"I am experiencing mild symptoms, and am following all appropriate protocols, including being in quarantine and conducting contact tracing," the younger Giuliani said in a November 20 tweet disclosing his Covid-19 positive test.
The extraordinary spread among Mr Trump's associates underscores the cavalier approach the president has taken to a virus that has now killed more than 280,000 people in the US alone.
Those infected also include the vice president, his chief of staff, the White House press secretary, advisers Hope Hicks and Stephen Miller, as well as Mr Trump's campaign manager and the chair of the Republican National Committee.