Ted Cruz is the last hope of the anti-Donald camp: Cruz was able to claim a victory of sorts. He has now beaten the Donald in three states. But he lost much of the South and is out on the conservative, evangelical wing of the party, making it difficult for him to unite the establishment - or to win a general election.
Bernie Sanders is going to go down swinging: The nomination will go to Hillary Clinton but there are still plenty of people feeling the Bern. Sanders' aim now seems to be to keep the revolution/campaign going for as long as he can.
Marco Rubio's campaign is on life support:
Maybe it was the attacks on Donald Trump in the past few days, including a joke about his small hands (or something), or his savaging of the frontrunner during the last debate, that turned voters against him. But his campaign looks to be over.