Walker: Already on the Sunday news show scoreboard for 2014. Half dozen or so Sunday news show appearances since 2012 election. Also, Piers Morgan, Lou Dobbs, more national TV interviews.
ACTUALLY DO SOMETHING: For voters who want to support doers, not just talkers.
Biden: Leading Obama's review of federal job-training programs, prime player in U.S. response to Ukrainian crisis. His office co-chaired a White House task force to address sexual assault on campuses. Point man on gun control, which failed. Negotiated fiscal cliff deal.
Clinton: Record as secretary of state, senator and first lady. Recent initiatives to help children's health and education and status of women.
Cuomo: 2014 budget proposal calls for tax cuts for businesses, homeowners and renters. In 2013, pushed through nation's first gun-control law after the Newtown, Connecticut, school massacre. Led New York's effort to legalize same-sex marriage in 2011. Minimum wage boost, on-time budgets, teacher standards.
O'Malley: Toughened gun laws, repealed death penalty, saw voters approve gay marriage after he got behind legislation to approve it, set up a framework to develop offshore wind power, won legislative approval in April of minimum wage increase, a 2014 priority.
Bush: As Florida governor, revamped state educational system, cut taxes, managed state through hurricanes.
Christie: Won November 2013 re-election, becoming first Republican to earn more than 50 percent of New Jersey vote in quarter-century. Led state's response to Superstorm Sandy. Agreed to expand state's Medicaid program under the new health law while some other Republican governors have refused to do so. Vetoed a bill that would have sanctioned gay marriage, but declined to appeal a court ruling that legalized it.
Cruz: Leading force in dispute that partly shut the government, 21-hour Senate speech against Obama's health law. Argued before U.S. Supreme Court nine times, with eight of those coming while he was Texas' longest-serving solicitor general, between 2003 and 2008.