Biden's comeback leaves Sanders little time to expand appeal

After losing the momentum in the Democratic presidential race, Bernie Sanders has work to do - and little time to do it - to build the "multiracial, multigenerational movement" he says will propel him to victory over Republican President Donald Trump in November.

Biden's comeback leaves Sanders little time to expand appeal
After losing the momentum in the Democratic presidential race, Bernie Sanders has work to do - and little time to do it - to build the "multiracial, multigenerational movement" he says will propel him to victory over Republican President Donald Trump in November.