District Court judges are in the best position to determine whether the defendant has made a knowing and intelligent waiver of his or her right to counsel. This court will not disturb a district court's grant of a request for self-representation so long as substantial credible evidence exists to support a determination that the defendant acted voluntarily, knowingly, and intelligently in waiving his or her right to counsel. State v. Hartsoe, 2011 MT 188, ¶ 20, 361 Mont. 305, 258 P.3d 428.