Romney leads among registered Republicans with 46%, followed by Paul at 14%, Huntsman at 12%, and Gingrich and Santorum at 10% each. Romney leads among undeclared voters (independents) with 30%, followed by Huntsman at 24%, Paul at 20%, and Santorum at 15%.

Romney leads among Tea Party supporters with 33%, followed by Gingrich at 22% and Paul and Santorum at 15% each. Among those likely voters saying they are not Tea Party supporters or that they are undecided about the Tea Party, Romney leads with 42%, followed by Huntsman at 20%, Paul at 17%, and Santorum at 11%.