The Wire breaks down the by-poll result in three West Bengal assembly constituencies and one Vidhan Sabha seat in Odisha. What is the national import of the Trinamool Congress and Biju Janata Dal’s emphatic victories in the by-elections? Will regional parties play a greater role in challenging the Bharatiya Janata Party’s national dominance? Will Mamata Banerjee and M.K. Stalin’s attempts to forge a united opposition front succeed? We discuss these questions and more.