With the rise of the UNPA, LK Advani's Prime Ministerial bid has taken a nose dive. BJP cannot by themselves hope to regain the Center without allies i.e. they need to expand membership of the NDA.
The needed more allies in Andhra Pradesh, UP, NE, West Bengal, Assam etc. All those parties which BJP were eyeing like TRS, TDP, TC, BSP have joined the 3rd Front.
As a result a trickle of defections from BJP-NDA is nowing threatening to turn to a flood.
However, a UPA win will burst the UNPA bubble as the reward for all Mayawati's poaching of MPs will be that she will be tried for corruption.
A discredited Mayawati will trigger the UNPA to disintegrate. Then these parties will flock back to either the NDA or UPA, leaving the Left isolated.
