• March 23, 2010: President Barack Obama signs the Patient Protection and Affordable Care Act into law.
• March 23, 2010: Florida and several other states file a lawsuit in federal court challenging the constitutionality of the Affordable Care Act.
• November 2010: Voters passed State Question 756, which sought to prevent many aspects of the Affordable Care Act from taking effect in Oklahoma.
• January 2011: Oklahoma Attorney General Scott Pruitt files a lawsuit in federal court challenging the constitutionality of the Affordable Care Act. That lawsuit is put on hold by Judge Ronald White pending a decision from the U.S. Supreme Court on the challenge coming from Florida.
• February 2011: Oklahoma is awarded a $54.6 million “early innovator” grant to set up a health insurance exchange. The application was written by Gov. Brad Henry's office but approved by Gov. Mary Fallin's transition team before it was submitted.