Members of the Catalan Popular Party display Spanish flags just before abandoning the session ahead of the voting during a plenary session at the Parliament of Catalonia in Barcelona, Spain, Wednesday, Sept. 6, 2017. Catalan lawmakers are voting on a bill that will allow regional authorities to officially call an Oct. 1 referendum on a split from Spain, making concrete a years-long defiance of central authorities, who see the vote as illegal. (AP Photo/Manu Fernandez)