Why Rubio Was a Big Winner Tonight

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For a guy who hasn’t won anything yet, Sen. Marco Rubio had a very good night. He likely finished in second place in South Carolina, but even if he slips into third it was still a very good night.

The main reason is that Jeb Bush dropped out of the race. Bush was obviously not persuaded by the argument that staying in the race could allow him to play a role in a contested convention. Instead, he got out of the race so he would not be responsible for allowing Donald Trump to win the nomination.