I'm not going to try to defend them, but for those who are interested the Catholics in the 110th senate are, per wikipedia:
Sen. Biden, Joseph (DEM-DE)
Sen. Brownback, Sam (REP-KS)
Sen. Bunning, Jim (REP-KY)
Sen. Cantwell, Maria (DEM-WA)
Sen. Casey, Robert (DEM-PA)
Sen. Collins, Susan (REP-ME)
Sen. Dodd, Christopher (DEM-CT)
Sen. Domenici, Pete (REP-NM)
Sen. Durbin, Richard (DEM-IL)
Sen. Harkin, Tom (DEM-IA)
Sen. Kennedy, Edward (DEM-MA)
Sen. Kerry, John (DEM-MA)
Sen. Landrieu, Mary (DEM-LA)
Sen. Leahy, Patrick (DEM-VT)
Sen. Martinez, Mel (REP-FL)
Sen. McCaskill, Claire (DEM-MO)
Sen. Menendez, Robert (DEM-NJ)
Sen. Mikulski, Barbara (DEM-MD)
Sen. Murkowski, Lisa (REP-AK)
Sen. Murray, Patty (DEM-WA)
Sen. Reed, Jack (DEM-RI)
Sen. Salazar, Ken (DEM-CO)
Sen. Sununu, John (REP-NH)
Sen. Vitter, David (REP-LA)
Sen. Voinovich, George (REP-OH)
And somewhat interestingly, there's one Eastern Orthodox in the Senate, Olympia Snowe.
All C.I.N.O.'s!