Governor Vidyasagar Rao must now put an end to the charade that has become Tamil Nadu politics. All he needs to do is to summon the Tamil Nadu Assembly and allow the Opposition to conduct a vote of confidence. Political instability serves only ill. The only gainer in this feud is the Bharatiya Janata Party, who finds the AIADMK factions pliant, thanks to the present political uncertainty and the show of power of the Centre to settle that uncertainty.