*Oklahoma Substitute *Dr.Tom Coburn, the conservative country doctor from Muskogee, Okla., who has published a scathing account of his six years in Congress ("Breach of Trust"), is considering running for a U.S. Senate seat from Oklahoma that Republicans are in danger of losing. Former Oklahoma City Mayor Kirk Humphreys, is not connecting with the grass roots. http://www.intellivu.com/main.asp?brand=&fnum=142&pathb=/articles1/rnovak/novak012404.htm PA Spector 50% - Hoeffel 31% Quinnipiac University Poll MOE+/-2.7% (Reg Voters) 02/10-16/04 http://www.quinnipiac.edu/x10183.xml SC: