Sonia Gandhi, the Congress leader, and her son and expected successor Rahul, said they accepted the results with “humility” after the party was almost wiped out in the capital, ousted from power in Rajasthan, and lost ground in Madhya Pradesh where the opposition Bharaitya Janata Party (BJP) is in government. In Chhattisgarh, the party appeared to have slightly improved its fortunes, but not enough to take power.