The Gallup daily tracking poll shows Mitt Romney just edging Rick Santorum for the lead among Republicans and Republican-leaning independents nationally, 32% to 30%, with Newt Gingrich back at 16% and Ron Paul at just 8%.
A new Pew Research survey has Santorum just ahead of Romney, 30% to 28%, with Gingrich at 17% and Paul at 12%.