Abortion-rights groups, acknowledging they were caught off guard by a last-minute amendment toughening abortion restrictions in the House healthcare bill, are mobilizing to ensure that doesn't happen in the Senate. Activists hope to flood Washington to rally and lobby on Dec. 2, during the week that Senate floor debate begins. The Center for Reproductive Rights has aired television ads criticizing the restrictions. On Tuesday, activists will announce the creation of the Coalition to Pass Health Care Reform and Stop Stupak, a network of more than 30 groups.