Sen. Sanders vows to stay course in quest to become Democratic presidential nominee

On the heels of disappointing losses during Tuesday's primaries, Vermont Sen. Bernie Sanders weighed in on the way forward for his campaign saying that he looks forward to debating former Vice President Joe Biden. "On Sunday, I very much look forward to the debate in Arizona with my friend, Joe Biden. And let me be very frank as to the questions that I will be asking Joe," Sanders said on Wednesday before ticking off a list of issues that he will hold Biden accountable for addressing -- progressive values that have won the Vermont lawmaker a deep bench of supporters. Issues such as childhood poverty,...