Two BJP Chief Ministers may find themselves in a tricky spot after results to the October 30 bypolls were declared. Himachal Pradesh Chief Minister Jai Ram Thakur and his Karnataka counterpart Basavaraj S Bommai have cause to worry against the backdrop of the BJP swiftly replacing four Chief Ministers in six months -- Vijay Rupani in Gujarat, B S Yediyurappa in Karnataka and Trivendra Singh Rawat and Tirath Singh Rawat in Uttarakhand.