Congress chief Rahul Gandhi, like sister Priyanka Gandhi Vadra, today squarely faced up to the allegation against brother-in-law Robert Vadra. In his impromptu press conference today following an investigative report on the Rafale jet deal, he challenged the government to investigate all the corruption deals - with a rider. "You do whatever inquiry and investigation you want...investigate Chidambaram and Vadra, but also investigate Rafale," Mr Gandhi said.