Yosuke Kondo, a Democratic Party lawmaker, said his demands were aimed at ensuring the bill receives sufficient discussion, such as requiring the chief cabinet secretary and other key officials to be made available for debate. "This is a very important piece of legislation. It needs to be discussed thoroughly," Kondo, who as the leading opposition director in the cabinet committee can in principle block the debate of a bill, told Reuters in an interview. "It will be impossible to pass the bill this session," Kondo said, adding that he was not necessarily against the idea of allowing casinos in Japan and could see a chance of the bill passing in the autumn session.