The Paris mayoral race has narrowed to a three-way contest after Sarah Knafo withdrew and Pierre-Yves Bournazel merged his list with Rachida Dati.While Bournazel surprised his Horizons party by declining a candidate spot on the new ticket, Knafo exited the race to consolidate the right-wing vote.Emmanuel Gregoire, Rachida Dati, and Sophia Chikirou remain the final contenders for the city hall runoff scheduled for late March.