Capturing the war-weary feeling a short time ago one Senator said to me: "most American children, most American teenagers have no memory of their country not being at war" and he said that has to change.
But the President does have a couple of weapons left to shape this debate. Of course there is the speech to the nation that he will make tomorrow night.
The White House is also distributing thirteen CIA verified and very harrowing videos of the chemical weapons attack on the suburbs of Damascus, here on Capitol Hill.
The President calculating that when the Congress watch that they may change their mind and decide that doing nothing is simply not an option.
More top news
SNP calls on the Prime Minister to "think again" on proposals to give English MPs a veto over legislation which affects only England.
Heavy showers set to spread into western areas tomorrow.
Andy Murray is Britain's last hope of a 2015 Wimbledon win after overcoming an apparent shoulder injury to beat Italy's Andreas Seppi.