The former secretary of state has been losing ground in recent polls to presidential Democratic challenger Bernie Sanders.
CNN would allow vice president to take part even if he declares his campaign the day of the event.
The real estate billionaire leads the retired neurosurgeon by one percentage point.
A quarter of Americans who are registered Democrats or lean that way said Biden now is their top choice for president.
The former Maryland governor aims to cut in half deaths from gun violence within 10 years.
Vermont senator edges ahead in early 2016 presidential primary states.
In a moving interview, the vice president suggests he isn't emotionally ready to run for president.
The U.S. senator holds a one percentage point lead in the state over the Democratic frontrunner.
In recent weeks, there has been widespread speculation about Biden running for president next year.
Harvard law professor Lawrence Lessig says if he can crowd-fund a million dollars, he’ll seek the Democratic nomination.
At a forum on faith, 2016 candidates shied away from mentioning the racially-charged attacks on a church in Charleston.
The planned “debates” are a sham and may backfire on the almost certain Democratic nominee.
Newt Gingrich’s 1994 version was limited in scope and rode an anti-Clinton wave. The New York Mayor is trying something harder.
A centrist Obama ally saw off a liberal challenger. But what if a liberal stood against Mrs. Clinton?
Obama is facing an unholy coalition of left-wing Democrats and right-wing Republicans.
When it comes to Obama’s relationship with Menendez it’s, um, complicated. What’s a president to do?