New Delhi, Oct 20 (ANI): A day after the Congress faced a humiliating defeat in both Haryana and Maharashtra, the Congress on Monday said that it has full faith in the leadership of Congress President Sonia Gandhi and Vice President Rahul Gandhi. Further talking about Robert Vadra, Surjewala said that the BJP, which is in power at the centre and would soon form a government in Haryana is welcome to investigate the matter.