On the Republican side, the poll shows Romney, who has indicated that he is not interested in a third presidential run, with 20 percent support among GOP voters. He's followed by Dr. Ben Carson with 10 percent support, and former Florida Gov. Jeb Bush with 9 percent. When Romney isn't listed as a potential candidate, Bush is the top draw with 14 percent support, followed by Carson with 11 percent.
The survey doesn't ask about name recognition, which likely contributes to the leads held by both Clinton and Romney, both among the best known politicians in their respective parties.
The telephone survey of 1,045 adults was conducted from Nov. 21 to Nov. 23 and has a margin of error of plus or minus 3 percentage points.