Biden campaign formally requests Secret Service protection
A congressional official told CBS News the four congressional leaders were notified of Biden's request Thursday.
Watch CBS News
A congressional official told CBS News the four congressional leaders were notified of Biden's request Thursday.
"Public health professionals must be the ones making our public health decisions and communicating with the American people," Biden said.
Former Vice President Joe Biden and Senator Bernie Sanders are set to face off Sunday in the 11th debate of the presidential primary.
Biden on Thursday is set to name veteran Democratic operative Jen O'Malley Dillon as his campaign manager.
Bloomberg dropped his presidential bid on March 4.
Sanders did not speak on Tuesday evening after losing primaries in four states and winning in North Dakota.
Biden's victories in Idaho, Mississippi, Missouri and Michigan increased pressure on Bernie Sanders to abandon his bid.
Yang joins 10 of Biden's former challengers who endorsed the former vice president.
Joe Biden and Bernie Sanders are set to face off in Arizona on March 15.
Sterling Heights Mayor Michael Taylor said Biden is the candidate who can build a broad coalition of support to defeat President Trump in November.
A week after Super Tuesday, the Democratic field has winnowed to two main candidates, Bernie Sanders and Joe Biden.
Sanders is betting on protectionist trade policies deliver him a win he needs in Michigan and other voting contests to come.
The senator and former candidate says Biden is the party's best choice to win "and, frankly, save our nation, humanity."
"I've always believed we need to make it easier for all citizens to register and vote, not harder," Bloomberg said.
It's a two-man race now, with Bernie Sanders and Joe Biden fighting for delegates in six states on Tuesday.