Rep. Joe Wilson (R-S.C.) will appear on “Fox News Sunday— this weekend, just four days after shouting “You lie!— at President Barack Obama during the president’s joint address to Congress on health care reform.

Wilson’s Wednesday night remark made national headlines and prompted a rebuke from Republicans and Democrats alike. Wilson immediately apologized to the White House, but has so far refused to heed the calls of House leaders to take to the floor to issue a mea culpa.

The House Democratic leadership is now preparing a resolution of disapproval against Wilson unless he agrees to apologize on the House floor.