Robert Vadra, Congress president Rahul Gandhi's brother-in-law, lashed out at what he called a "vindictive government" on Tuesday over the Enforcement Directorate's summons to his 75-year-old mother Maureen Vadra along with him in a money-laundering case. For the interrogation, the Vadras are in Jaipur, where Robert Vadra's wife and Congress leader Priyanka Gandhi Vadra also arrived last night. Priyanka Gandhi, who launched her campaign in Uttar Pradesh for the national election with a mega roadshow in Lucknow, is likely to drop off her husband and mother-in-law in a gesture of solidarity, as she had done for Robert Vadra on his first day of questioning in Delhi by the Enforcement Directorate.