The War between the Branches

When did Congress' list of enumerated powers come to include being in control of foreign policy and the military? I thought those powers were given to the EXECUTIVE BRANCH by the Founding Fathers? Then again, the party in control of the Congress have always shown disdain for anything in the Constitution they don't like. Like that pesky 2nd Amendment, the "Life" part of "Life, Liberty, and the Pursuit of Happiness", the religion part of the 1st Amendment(excluding all non-Christian religions), as well as the speech part of the 1st Amendment when it comes to speech they find "offensive", "divisive", or could "create a hostile environment". Congress only has the ability to declare war. They gave the President war time powers. It was almost unanimous in the vote for a war declaration. If the Congress didn't want to go to war, why did they declare it? The President HAS to return troops home after 90 days without an official declaration. Why didn't they wait it out? Because, being the hypocrites the Democrats are, they are the ones who agreed with the information at the time. They all saw the same intel seen by the President, and 2 of the most prominent Anti-War politicians said it was beyond a doubt that Saddam had WMD's.(see Democra-mentia post). The President is the one who determines foreign policy, and he is the one who runs the military. That annoying little power given to him by the Founding Fathers. It isn't the Congress' responsibility to determine if a war is a victory or loss, especially when we are winning. It isn't their right to dictate how the military is run. This Congress needs to look at their job outlined in that piece of paper called The Constitution. The Legislative Branch exists to create the laws, not be the Commander(s) in Chief.