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GOP candidates confident heading into "Mega Tuesday"

Name: GOP candidates confident heading into "Mega Tuesday"
Uploaded: 2016-03-15T18:30:00-0400
Duration: 2 min 27 s
Description: It could be a do-or-die Tuesday for Marco Rubio and possibly John Kasich as their home states go up for grabs. Despite trailing in the polls, Rubio and Kasich sound as optimistic as the two men they're trailing, Donald Trump and Ted Cruz. Major Garrett has more.

It could be a do-or-die Tuesday for Marco Rubio and possibly John Kasich as their home states go up for grabs. Despite trailing in the polls, Rubio and Kasich sound as optimistic as the two men they're trailing, Donald Trump and Ted Cruz. Major Garrett has more.