Dozens of U.S. Representatives want Joe Arpaio's Presidential pardon declared invalid. Attorneys for 33 Democratic members of Congress appeared in a Phoenix courtroom Wednesday morning to argue the pardon is an invalid encroachment by President Donald Trump on the power of the courts. The brief argues that U.S. District Judge Susan Bolton should toss out the Presidential pardon for the 85-year-old former sheriff in the interest of protecting the government's division of powers. Arizona Representatives Raúl Grijalva and Ruben Gallego are among the 33 Congressional members named in the brief. Attorney's for Joe Apraio have asked that the case against him be dismissed. Traditionally, a pardon does not erase the conviction. Judge Bolton will hear arguments on October 4th from defense and prosecuting attorneys on whether Arpaio's record should be cleared of the charge. It's not clear if or when she will take up the "friend of the court" brief submitted Wednesday.