As Lt. Gov. David Dewhurst and former solicitor general Ted Cruz crank up their campaigns heading toward the July runoff election for U.S. Senate, the two candidates will spend most of their time touting their own accomplishments and criticizing their opponent's record. But just how different are they on the issues, and where does that leave voters? We also hear from reporter Julián Aguilar on his way to cover Mexico's presidential election. He brings us reaction from the road on what a new president might mean to this violence-torn nation.

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