Ensuring Justice Along the Southwest Border Act of 2010 - Directs the President to appoint additional district judges for certain judicial districts in Arizona, California, New Mexico, and Texas, including temporary judgeships in Arizona and California.
Directs the Attorney General to allocate any amounts appropriated pursuant to this Act for the hiring and training of special assistant U.S. attorneys.
Requires such funds to be used to: (1) train local prosecutors in techniques used to prosecute border-related offenses cases; (2) train local prosecutors in federal and state laws relating to border-related offenses; (3) cross-designate local prosecutors as special assistant U.S. attorneys; and (4) hire additional local prosecutors who, with the approval of the U.S. attorney, shall be cross-designated to prosecute both federal and state border-related offenses cases.