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Rand Paul

What about Rubio?

What about Rubio?

As foolish as it may be to pick winners and losers coming out of a debate, particularly in a field so crowded as the Republican presidential contenders and with weeks yet before the first meaningful vote is cast, it's become increasingly obvious that Florida Sen. Marco Rubio is emerging as the rising star of his party, boosted by his steady performance in Milwaukee Tuesday night.

Mr. Rubio's command of the issues, both foreign and domestic, is vastly superior to frontrunners Donald Trump and Ben Carson. Despite his mistaken belief that welders earn more than philosophy majors (Bureau of Labor Statistics data prove otherwise), he wasn't caught in the kind of embarrassing debate...