Andrew Cuomo

New York Gov. Andrew Cuomo speaks during a news conference in Albany, N.Y., on Tuesday, May 22, 2012. (AP Photo/Mike Groll)

Mike Groll

We are still four years away from the 2016 presidential campaign, but Public Policy Polling is already looking ahead

Iowa Democrats prefer current Secretary of State Hillary Clinton in 2016, according to the poll. But if Clinton and Vice President Joe Biden decide not to run, New York Gov. Andrew Cuomo leads the pack.

While Cuomo is the preferred candidate for three percent of Democrats with Clinton and Biden in the race, 20 percent of Democratic voters said he would be their preferred candidate if Clinton and Biden did not run for president. That puts Cuomo nine points ahead of Massachusetts U.S. Senate candidate Elizabeth Warren and 18 points ahead of another governor who has been the subject of 2016 speculation, Maryland Gov. Martin O'Malley. 

Cuomo's favorable rating is 26 percent, according to the poll, while 19 percent of voters said they have an unfavorable opinion of Cuomo. 

On the Republican side, former Arkansas Gov. Mike Huckabee and former U.S. Senator Rick Santorum are tied for first with 17 percent, while New Jersey Gov. Chris Christie came in third with 16 percent. 

Four percent of voters said they prefer 2008 GOP vice presidential candidate Sarah Palin.