It has again become Sonia Gandhi's responsibility to put together the broken pieces of opposition unity. She successfully performed this task in 2004, thereby paving the way for the Congress's return to power after nearly a decade.
But, 13 years later, the job has become far more difficult.
For one, the Congress president's principal opponent, the Bharatiya Janata Party (BJP), has become politically a great deal more secure as well as uncommonly aggressive under a new leadership, unlike in the time of Atal Behari Vajpayee and LK Advani.
For another, the Congress has become weaker and demoralised after its drubbing by the BJP in 2014. Its reputation has also suffered because of the corruption charges it faced during its tenure in power in the 2004-14 period.

