Hillary Rodham Clinton was a senator from New York the last time the U.S. Congress was asked to authorize military action in the Middle East. Friends believe her 2002 vote giving President George W. Bush the power to invade Iraq may have cost her the presidency in 2008.

Today, she is a former secretary of state with another possible presidential campaign in her future.

As President Barack Obama ramps up efforts to persuade Congress to authorize military action against Syria, the question is whether this episode will become an asset or liability if she becomes a candidate again.