Obama Meets with John McCain at White House

b_250_0_16777215_00_images_obgrabber_2013-09_ac534e78f9.jpgJEWEL SAMAD/AFP/Getty Images (WASHINGTON) -- Emerging from a White House meeting with President Obama on Monday, Sen. John McCain, R-Ariz., said it would be "catastrophic" for Congress to reject the president's request to take military action against Syria's use of chemical weapons, but that the administration needs to outline a stronger case to the American people.

"If the Congress were to reject a resolution like this after the President of the United States has already committed to action, the consequences would be catastrophic in that the credibility of this country, with friends and adversaries alike, would be shredded and there would be not only implications for this presidency, but for future presidencies as well," McCain told reporters shortly after meeting with the president in the Oval Office.

Sen. Lindsey Graham, R-S.C., who along with McCain, met with Obama for roughly an hour, was optimistic that the administration is developing a comprehensive military strategy -- a "pretty solid plan" -- but said he needs to see more details.

"For the first time, I see the development of a strategy that will upgrade the opposition as well as degrade Assad," said Graham, who urged the president to "up his game" in explaining the need for action to the "skeptical" American public.

McCain added: "Tell us without any hesitation, Mr. President, what does it matter to us as a nation if this war goes on and Assad wins?"

"I believe the president is capable of doing that, has not yet done it, but he is ready to do it.  And if he's ready to do that part, I'm ready to go to my colleagues in the Congress and say, 'Now's the time for us to come together before it's too late,'" McCain continued.

Copyright 2013 ABC News Radio