Under what circumstances, if any, would the Constitution permit the president to authorize the targeted killing of a United States citizen who has not been sentenced to death by a court?

Under what circumstances, if any, would the Constitution permit the president to imprison a United States citizen, arrested on United States soil, indefinitely and without charges as a military detainee?

In the absence of an imminent threat to the United States, under what circumstances, if any, would the Constitution permit the president to direct the armed forces to attack another country without receiving prior authorization from Congress? (Two examples to consider: a strategic bombing of a suspected nuclear site in a country like Iran, and a humanitarian intervention like the recent conflict in Libya.)

The War Powers Resolution requires presidents to terminate deployments into hostilities that have not been authorized by Congress 60 days after notifying lawmakers that the campaign has begun; is that mandate constitutionally valid and legally binding on the commander in chief? Are air campaigns -- that involve strikes on foreign adversaries but put U.S. forces at little risk -- “hostilities” for purposes of that law?

Under what circumstances, if any, would you sign a bill into law but also issue a signing statement reserving a constitutional right to bypass the law?

Does the Constitution give the president authority to lawfully disregard statutory restrictions on the release or custody transfer of wartime detainees? Does it give him authority to disregard statutory restrictions regarding the prosecution of terrorism suspects in a civilian court or a military commission?

If a federal statute prohibits an interrogation technique or mandates restrictions and procedures on surveillance for national security purposes, under what circumstances, if any, would the Constitution permit the president to override such statutes and authorize subordinates to act contrary to them?

Under what circumstances, if any, is the president, when operating overseas as commander-in-chief, free to disregard treaties to which the United States is a party?

Does executive privilege allow the president to block Congress from receiving testimony or documents about decision-making within the executive branch not involving confidential advice communicated to the president himself? When is it appropriate, and when is it not appropriate, for the executive branch to invoke the State Secrets Privilege in court? May the government keep secret from the public, as “properly classified,” its official interpretation and analysis of what a law means?

Which executive powers, if any, claimed and exercised by the Bush and/or Obama administrations were unconstitutional in your view? Were there any such powers that were simply a bad idea?

Who are your campaign’s advisers for legal issues?