Asked about potential Romney running mates, Christie, by far the best known of the potential picks, runs best with 31 percent calling him a good choice compared to 18 percent saying he would be a bad choice and 49 percent with no opinion yet. Independent voters, the key voting bloc, see Christie as a good choice 33 - 18 percent.
Rubio was labeled a good choice 24 - 14 percent overall and 27 - 14 percent among independents, while Ryan has similar numbers, 23 - 17 percent good choice overall and 25 - 17 percent among independents.
For other possible running mates, the "no opinion" count is 64 percent or higher.
"Even Gov. Christopher Christie evokes a 'no opinion' from half the electorate, with Ryan and Rubio even more so. Other potential running mates who did not rate as highly as the three leaders are quite unknown. At this point Christie, who recently said he would not rule out running with Romney, has an edge with the public, but the vice presidency goes to the winner of an election with one voter - Mitt Romney," said Brown.
From April 11 - 17, Quinnipiac University surveyed 2,577 registered voters with a margin of error of +/- 1.9 percentage points. Live interviewers call land lines and cell phones. http://www.quinnipiac.edu/institutes-and-centers/polling-institute/national/release-detail?ReleaseID=1737