Rubio Iowa closing argument attacks Clinton, not GOP rivals

Republican presidential candidate Sen. Marco Rubio, R-Fla., greets supporters during a campaign event, Sunday, Jan. 24, 2016, in Cedar Rapids, Iowa. (AP Photo/Mary Altaffer)WATERLOO, Iowa (AP) — Republican presidential candidate Marco Rubio sprinted toward the Iowa caucuses Sunday, avoiding direct confrontations with his opponents and instead, projecting a vision that looks more toward the general election.

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