President Obama said at a Miami town-hall meeting this week there would be “consequences” for government officials who fail to carry out his immigration executive actions. Now, a U.S. senator is demanding answers in light of a recent federal court ruling against Obama’s policy.

Sen. James Lankford, R-Okla., told The Daily Signal he wants to know what “specific consequences” the Obama administration would take if an Immigration and Customs Enforcement agent failed to obey Obama’s unilateral action.

Among the questions Lankford asks in a letter to the White House: “How should agents balance their oath to defend the Constitution with your order to follow policies that a federal court deemed in violation of federal law?”

Lankford’s Senate subcommittee has oversight of Department of Homeland Security employees. He sent the following letter to Obama earlier today.