As President, I would not hesitate to use decisive force to repel any imminent threat. National defense is a primary function of Congress and the commander-in-chief, and, as chief executive, I would carry out my duties as outlined in the Constitution and in accordance with the rule of law. President Obama apparently believes he is not bound by the Constitution or the rule of law. When it was reported that Anwar al-Awlaki was killed by U.S. drone strikes in Yemen last week, certainly no one felt remorse for his fate. Awlaki was a detestable person we believe helped recruit and inspire others to kill Americans through terrorist acts. We have to take the fight against terrorism very seriously. In 2001, I supported the authority to capture and kill the thugs responsible for 9/11. In our efforts we must, however, work hard to preserve and respect our great American constitutional principles. Awlaki was a U.S. citizen. Under our Constitution, American citizens, even those living abroad, must be charged with a crime before being sentenced. As President, I would have arrested Awlaki, brought him to the U.S., tried him and pushed for the stiffest punishment allowed by law. Treason has historically been judged to be the worst of crimes, deserving of the harshest sentencing. But what I would not do as President is what Obama has done and continues to do in spectacular fashion: circumvent the rule of law. On Feb. 3, 2010, Dennis Blair, then the country's director of national intelligence, admitted before the House Intelligence Committee that "Being a U.S. citizen will not spare an American from getting assassinated by military or intelligence operatives." This open admission by an Obama administration official, not even attempting to keep it classified or top secret, sets a dangerous new precedent in our history. Continue . . .