Watch the most emotional moment of the State of the Union

For all the agenda-driven details in Barack Obama's State of the Union address, including the flashpoint proposal to raise the federal minimum wage to $9, the lone moment of drama and emotion came near the final minutes. That was when the president turned his attention to gun violence and the debate over gun controls since the Sandy Hook shooting in Newtown, Conn. Using the slaying of Hadiya Pendleton just a mile from his own home in Chicago as a tragic introduction, Obama tried to goad the House and Senate with a single challenge. "They deserve a vote," he said of victims of gun violence, urging a vote on gun control bills no matter where lawmakers stand. No more poignant an image of his desire was there than Rep. Gabby Giffords, a victim of a 2011 shooting, struggling to applaud his remarks.

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