David Thomas Roberts' third?installment of his action-filled political thriller Patriot Series titled, "Purge on the Potomac," finds iconic Texas Ranger, Pops Younger, at the?crossroads of his legendary career faced with defying his oath of office to defend the Constitution against all enemies-foreign and domestic. A bloated federal government that has overreached its authority and encroached on Texans' civil rights has?ignited the passions and ire of an extreme element?determined to alter the course of normal politics?forever. Conflicted with his life-long dedication to the rule of law, Younger must choose between following the law or taking a stand against modern-day tyranny, leading to suspenseful cataclysmic events.?