For years, a deferentially unanimous refrain within the Congress party, at times even at the risk of undermining the leadership of Sonia Gandhi and Rahul Gandhi, has been that Priyanka Gandhi Vadra is the only panacea for the Grand Old Party’s continuing state of drift. The party’s ‘brahmastra’ – an unyielding weapon in Hindu mythology that never misses its mark but can only be used once – is how many Congressmen would define Priyanka; sometimes as an excuse for the delay in her joining active politics, at others as a flatteringly premature tribute to her leadership skills.