With a deadline for new Oklahoma gaming compact looming, a Native American tribe has warned the federal government that it might take legal action to avoid disruption to tribal casino operations in the state. Chickasaw Nation Gov. Bill Anoatubby sent a letter Tuesday to the U.S. Department of the Interior — the federal agency that oversees tribal gaming — insisting that his tribe’s gaming compact with Oklahoma automatically renews Jan. 1, despite Gov. Kevin Stitt’s attempts to renegotiate the terms.