Sanders has a steep hill to climb to win enough delegates in the presidential primary. But he doesn't seem deterred, telling NPR, "I am used to climbing steep hills."
Donald Trump pushed back against attacks on his business prowess this week, showing off examples of Trump-branded water, wine and steaks. But Trump's own ties to those products may not be as strong as he suggested.
"The truth is, Donald Trump and Hillary Clinton are two sides of the same coin. They're not going to reform the system. They are the system," Fiorina, who ended her own bid last month, said.
Trump Water, a Trump magazine, Trump Steaks — all of that was on stage after the presidential candidate's wins in Michigan, Mississippi and Hawaii on Tuesday. But much of it isn't actually his.
Add together the 23 states where Republicans have voted or caucused this year, and you get 12.4 million people — a bump of nearly 67 percent across those states compared with 2012.
Bernie Sanders pulled off an upset in Michigan, but Hillary Clinton handily took Mississippi. On the Republican side, Donald Trump racked up three more victories and Ted Cruz won in Idaho.