How Rubio's campaign failed: problems from the start

MIAMI — Marco Rubio had all that you need in a Republican presidential candidate: fluency on the issues, a conservative outlook, crossover appeal as a Cuban-American, and youthful good looks.

But in an election year when anyone associated with the Republican establishment is seen as tainted, Rubio ended his campaign after New York real-estate mogul Donald Trump won the coveted primary, or nominating contest, in Rubio's home state of Florida on Tuesday.

"This may not have been the year for a hopeful and optimistic message about our future," Rubio told supporters as he announced his decision.

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