Bahujan Samaj Party (BSP) supremo Mayawati on Saturday said the Bharatiya Janata Party (BJP) had blatantly used the constitutional office of the governor to assume power in Karnataka. After BJP leader BS Yeddyurappa resigned from the post of the chief minister of Karnataka, Mayawati said, "This is a big blow for them (BJP) and I think what they had been planning all along for 2019 has failed, they will now have to rethink and alter their strategies."