I wasn't sure where to put this analysis by Peter Baker of the the NYTs because it's more than a month old.  Baker writes about how Obama, like many if not all of his predecessors, has wrestled with the inherent tensions between his authority as executive and commander and chief, and the constitutional authority Congress has to oversee and in some cases authorize or reject executive action in matters dealing with foreign policy.  Didn't think it was worth a separate post, but I do think it's useful resource for anyone wishing to gain a better understanding of the the issues underlying continued deliberations concerning the president's AUMF request on ISIL, and of course as we are poised to address analogous separation of powers issues more directly if there is an agreement with Iran and the role to be played by Congress has not yet been resolved.