Former New York Mayor Rudy Giuliani is the top pick for 26 percent of young GOP voters.
(CNN) - With less than a month until the first votes are cast in the presidential campaign, the Republican race is wide open for the young voters, a survey shows.
Among young Republicans, more are undecided than those who have made up their minds. Just 13 percent of young adults who say they are Democrats are still undecided, according to the survey.
The national poll by Harvard University's Institute of Politics questioned about 2,500 18- to 24-year-olds between October 28 and November 9.