Bahujan Samaj Party chief Mayawati on Sunday said Congress' is so miserable it “changed” its Chief Minister face for Uttar Pradesh polls within hours of announcement. "The condition of the Congress party is so miserable in the UP Assembly elections that their CM candidate changed her stand within a few hours. It would be better, if people do not waste their vote by giving it to the Congress. And vote one-sided for the BSP," Mayawati tweeted.