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Potential 2016 GOP contenders address shortcomings

High-profile GOPers are staking out surprising positions on lightening rod issues, including voter id laws and climate change. What gives?

Former Senator and 2012 Republican presidential candidate Rick Santorum addresses the Conservative Political Action Conference in National Harbor, Md. on March 7, 2014.
Former Senator and 2012 Republican presidential candidate Rick Santorum addresses the Conservative Political Action Conference in National Harbor, Md. on March 7, 2014.Mark Peterson/Redux