BJP biggies may have been the first to congratulate Pranab Mukherjee on his then still-rumoured move to Rashtrapati Bhavan, but the Congress decision to nominate him has created enough bitterness in the two camps that it is becoming a free-for-all. The Congress has eagerly latched on to the Nitish Kumar-Narendra Modi tussle to egg on the Bihar CM to come out of the NDA.