They can only keep trying to point out how illegal his moves were.
check this out.

Under threats from congressional Democrats to “do something” about the millions of Americans who lost their health insurance due to Obamacare, President Obama announced on November 14, that health insurance companies would be allowed to continue selling previously-legal health plans to those people who bought them, as long as they notified those customers of their other health insurance options.

When pressed to explain the legal authority for Obama’s policy change, Obama administration officials told The Washington Post’s Greg Sargent:

The Supreme Court held more than 25 years ago that agencies charged with administering statues have inherent authority to exercise discretion to ensure that their statutes are enforced in a manner that achieves statutory goals and are consistent with other administrative policies. Agencies may exercise this discretion in appropriate circumstances, including when implementing new or different regulatory regimes, and to ensure that transitional periods do not result in undue hardship.