''Congress insiders complain that [Rahul Gandhi] is a neophyte who does not have what it takes to become prime minister,'' the US charge d'affaires to India, Geoffrey Pyatt, wrote in a 2007 cable published by WikiLeaks.  But Rahul's supporters say he is biding his time. ''There is no suspense about it,'' senior Congress figure Digvijay Singh says. ''He has a role, which is increasing constantly.''