"I think it's possible and we’re preparing for that possibility," he said.
If a candidate does not have the 1,237 delegates required to win the nomination outright, it sets up a contested convention, during which some delegates are freed up in subsequent rounds of voting to choose whomever they want.
"If you say that half the states in this country -- that they should not participate -- their response may well be on Election Day, 'You didn't want us to participate in the primary process, you know, we are not going to come out for the general election," Sanders told reporters while campaigning in southern Arizona ahead of the primary in the state.
A school bus carrying an Indiana high school basketball team to a state tournament game overturned Saturday after it was sideswiped by a woman who spilled her drink on herself, police said.
None of the 27 people on board -- six adults and 21 students -- suffered life threatening injuries when the school bus crashed and overturned on the side of Indiana's Interstate 65, the Indiana State Police said.
America’s most famous bald eagles have their hands full -- or rather, their wings -- after a second eaglet hatched Sunday morning at the National Arboretum in Washington, D.C.
The first eaglet -- temporarily named DC2 -- was born Friday morning.
Sanday morning's adorable newborn, DC3, started hatching Saturday morning and then emerged around 3 a.m. today, the American Eagle Foundation said.
"[It's] fake for a movie," he told Extra.
"I actually do have a number of tattoos," Affleck, 43, admitted, "but I try to have them in places where you don't have to do a lot of cover up ... they get sort of addictive, tattoos, after a while."