New results from the Marquette Law School Poll show Wisconsin voters currently favor President Barack Obama over each of the Republicans seeking the presidential nomination, while former Senator Rick Santorum has moved into the lead as the presidential choice among the state’s Republicans.

The poll finds that 72% of those who responded had heard or read about the “John Doe” investigation of former aides of Governor Scott Walker while he was Milwaukee County executive. Fifty-two percent of those who were aware of the investigation called it “something really serious” while 40 percent said it is “just more politics.”

The results, released Tuesday, are from the second round of the Law School’s year-long polling project, the largest project of its kind in Wisconsin history. The new results include a decline from January in the percent of voters giving favorable rating to Walker and head-to-head results for possible US Senate match-ups this year. They also shed light on public sentiment about Wisconsin’s job climate and the proposed iron ore mine in northern Wisconsin.

Full results can be found by clicking here . Professor Charles Franklin, director of the poll and visiting professor of law and public policy at Marquette Law School, will talk about the result with Mike Gousha, distinguished fellow in law and public policy, in a session open to the public at 12:15 p.m. today at Eckstein Hall. The session will be shown live at law.marquette.edu and will be available for watching later on the Web page for the Law School poll.