Confrontation between the ruling and opposition camps continued at the Diet on Monday, with a mediation proposal offered by the president of the House of Councilors earlier in the day snubbed by both sides.
The opposition's boycott of all Diet deliberations entered its third week as both sides again failed to find middle ground over the ruling coalition's contentious plan to revise the roster system for the proportional representation segment of Upper House elections.
The revisions were approved by an Upper House committee last week, with the ruling bloc majority voting in favor of the bill despite the absence of opposition lawmakers.