Anchored by Jake Tapper, The Lead airs at 4 p.m. ET on CNN.
The Ukraine crisis – at what point does the U.S. have an obligation to intervene?
(CNN) - Vice President Joe Biden told CNN that he'd make a decision on whether or not to run for president by the summer of 2015.
If it's a yes, this would be his third run. But how likely is it that Biden makes a bid before Hillary Clinton makes up her mind?
USA Today's Washington bureau chief Susan Page, and CNN political commentator and New Yorker correspondent Ryan Lizza join the lead to discuss.