WASHINGTON — Leading congressional Republicans praised President Barack Obama's decision to seek lawmakers' approval before punishing Syria for a chemical attack. But it was far from clear whether they would support such a strike in a region rife with warfare and the specter of retaliation. "I do believe (Syria) should not have impunity," for the Aug. 21 attack near Damascus, Sen. John Cornyn, R-Texas, said by telephone. "But we need to understand what the whole scope of consequences is. What the president may perceive as limited...won't stop there."
