A new survey of Illinois from Public Policy Polling (D) finds that Sen. Roland Burris appears to be a sitting duck in any Democratic primary, if he does indeed run in 2010.

Burris' approval rating among likely Democratic primary voters is only 27%, to 49% disapproval. In a primary against state Treasurer Alexi Giannoulias, who has already declared his candidacy, Giannoulias leads with 49% to Burris at 20%. Adding Rep. Jan Schakowsky, who is publicly mulling a candidacy and will announce her intentions in June, it's Giannoulis 38%, Schakowsky 26%, Burris 16%.

If state Attorney General Lisa Madigan were to get in, though, she could take the whole field: Madigan 44%, Giannoulias 19%, Burris 13%, Schakowsky 11%. If Madigan were to run for governor instead, she also has a 45%-29% lead over the new Governor Pat Quinn, who took office after Rod Blagojevich was removed from office.