Democrats plan "pain" for Republicans who seek to slow or block passage of healthcare legislation, Sen. Sherrod Brown (D-Ohio) said Wednesday night. Brown said that if Republicans try to offer amendments and use parliamentary maneuvers to grind out the legislative process, Democrats would retaliate with all-night sessions and other methods of fighting back. "I think they're going to try to do amendments, as many as they can get away with," Brown said Wednesday evening during an appearance on MSNBC. "I think we keep them here all night -- tonight, the next night, the next night, the next night." "If they're...