to warrant such a delay. See id. Moreover, despite his argument to the contrary, Staler did not demonstrate that his criminal trial was invalid due to a fundamental error. See Stoneman, 870 F.2d at 106. Stuler was indicted and convicted for violating 26 U.S.C. § 7208. See United States v. McKee, 506 F.3d 225, 244 (3d Cir.2007) (noting the elements of 26 U.S.C. § 7203 include that the defendant: (1) was required to file the tax returns; (2) failed to file them; and (3) acted willfully). Stuler’s invocation of a host of unrelated statutes and regulations does not alter the fact that “importing” is not an element of a § 7203 charge. He has therefore failed to satisfy his burden of establishing a funda-' mental error. See United States v. Cariola, 323 F.2d 180, 184 (3d Cir.1963) (<HOLDING>). Because Stuler showed neither that any
holding that any proceeding which is challenged by the writ is presumed to be correct and the burden rests on its assailant to show otherwise recognizing that an agencys decision to terminate an employee is presumed correct holding that the burden is on the plaintiff holding that an exercise by the state of its police power is presumed to be valid when it is challenged under the due process clause of the fourteenth amendment holding that the burden is on the defendant when the validity of the warrant is challenged