Pelosi warns Lieberman for undercutting Obama Zachary Coile, Chronicle Washington Bureau Thursday, August 14, 2008 (08-14) 04:00 PDT Washington - -- House Speaker Nancy Pelosi blasted Sen. Joe Lieberman on Wednesday for making what she called "totally irresponsible" remarks about Democratic presidential candidate Barack Obama and warned that the Senate might retaliate by revoking Lieberman's committee chairmanship. Pelosi also chastised some of Hillary Rodham Clinton's supporters for being "less than gracious" toward Obama, although she praised the New York senator for rallying behind the party's nominee after a bitter primary fight. Pelosi's remark in an interview with KGO Radio talk...