WASHINGTON — The White House pressed aggressively on Monday for congressional approval of an attack on Syria, as President Obama got tentative support from Senator John McCain, one of his most hawkish Republican critics, for a limited strike if Obama does more to arm the Syrian opposition.
After an hourlong meeting with Obama at the White House, McCain emerged with Senator Lindsey Graham, Republican of South Carolina, to say that the two senators’ discussions with Obama in the Oval Office had been “encouraging.”
McCain also urged Congress to support Obama in his plan for military action in Syria. ‘‘We have to make it clear that a vote against this would be catastrophic in its consequences,’’ now and in future international crises, the Arizona senator said. Full story for BostonGlobe.com subscribers.