Fred Martinez, right, and Alfonso Lozada vote in the Republican presidential primary election at San Jose Academy in Guaynabo, Puerto Rico, Sunday March 18, 2012. Puerto Rico's residents cannot vote ... more 
Fred Martinez, right, and Alfonso Lozada vote in the Republican presidential primary election at San Jose Academy in Guaynabo, Puerto Rico, Sunday March 18, 2012. Puerto Rico's residents cannot vote in general elections, but are set to award 20 delegates in their Sunday Republican primary. (AP Photo/Christopher Gregory) less 
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Associated Press | Photo By Christopher Gregory
Sun, Mar 18, 2012 4:01 PM EDT