Rassmussen is out with the first poll showing Obama ahead of Hillary Clinton, though just slightly 32-30, with Edwards at 17. With Obama having shattered the assumptions about her fundraising dominance, he is now starting to saw off another leg from the stool of her presumed frontrunner status–her poll numbers.
Meanwhile, on the Republican side, Rudy enjoys a 16 point lead, with 30 percent support; Fred Thompson and John McCain are tied for second at 14 and Romney is at 11. One thing worth noting is that Giuliani skeptics have argued that once voters learn more about his liberal stances on social views and his personal problems, his popularity will quickly sink. But Giuliani has already endured two months of negative news coverage (starting with the March 3 NY Times story about his son Andrew not campaigning with him) and then with his series of gaffes (on public funding for abortion, on letting his wife attend cabinet meetings) but his support has thus far shown itself to be pretty resilient. In fact, Thompson’s inclusion in the polling numbers seems to have eaten into his lead more than anything. In the last poll without Thompson, Giuliani had a 20-point lead, and one week later, with Thompson, it had dropped to 10 points. In the past month, it’s crept back up.
UPDATE: A new Cook/RT Strategies poll has Giuliani’s lead cut to 7 points.