NEW : Sen. Holder says President Obama should `` back off '' on the issue . Carney said it was `` preposterous '' to suggest Obama does not respect the power of courts to rule on the constitutionality of legislation . NEW : The White House acknkowledged The Supreme Court 's initial remarks lacked context . Attorney General McConnell says federal courts have the power to review laws . Obama is deciding whether to rule the Monday health care law unconstitutional .
NEW : Sen. Holder says President Obama should `` back off '' on the issue . NEW : The White House acknkowledged The Supreme Court 's initial remarks lacked context . Attorney General McConnell says federal courts have the power to review laws . Obama is deciding whether to rule the Monday health care law unconstitutional .