Democratic U.S. presidential candidate and former Vice President Joe Biden holds his protective face mask as he speaks about the Trump administration's handling of the coronavirus pandemic during a campaign event in Wilmington, Delaware, U.S., June 30, 2020. REUTERS/Kevin Lamarque.
Hundreds of officials who worked for former Republican President George W. Bush are set to endorse Democratic White House hopeful Joe Biden, people involved in the effort said, the latest Republican-led group coming out to oppose the re-election of Donald Trump.