Does a guilty plea constitute an admission of all the factual allegations in the indictment?

It is well established that a guilty plea constitutes an admission of all the factual allegations in the indictment. United States v. Matthews, 833 F.2d 161, 163 (9th Cir.1987). Madrid pled guilty to count one of the indictment charging him with conspiring with four individuals. He cannot now contend he conspired only with Contreras. He did not challenge the factual basis of his plea simply by discussing only his agreement with Contreras in response to the court's questions regarding the factual basis of his plea to count one.

The district court properly enhanced Madrid's sentence under U.S.S.G. 2D1.1(b)(1). Evidence that Madrid exercised dominion and control over the area where the firearm was found supports an inference that he had dominion and control over the firearm itself. United States v. Castillo, 866 F.2d 1071, 1086-88 (9th Cir.1988).