President Obama greets students after speaking at the University of Michigan in Ann Arbor on Jan 27. Young Republicans say they see an opportunity in 2012 to dent Obama's popularity among the youngest voters.
Jewel Samad/AFP/Getty Images
Jan White, left, Brenda Robertson, center, and Janet Freixas, right, count paper ballots at the headquarters of the Douglas County Republican Party Saturday in Minden, Nev., following county-wide Nevada caucus meetings.
Ted S. Warren/AP