While Republicans argue among themselves over what to do about Obamacare – Defund it? Delay it? Give up the fight to repeal it? – a coalition of wealthy and determined liberal groups is preparing to strike back at GOP efforts to stop the president's health care scheme."We will deploy every tool and tactic at our disposal," said Brad Woodhouse, a former Democratic National Committee spokesman who now heads a group called Americans United for Change.Woodhouse listed the groups, in addition to his own, that are part of the new effort: Health Care for America Now; the Center for American Progress; Protect Your Care; the Service Employees International Union; the American Federation of State, County, and Municipal Employees; and Planned Parenthood.In assessing the defense effort, Woodhouse felt something was missing.