KENNEWICK, Wash. (AP) — Washington state has opened formal investigations into complaints over a failed funding drive to expand a convention complex. The Tri-City Herald reported Sunday that the Public Disclosure Commission will investigate The Link project for the Three Rivers Convention Center campus in Kennewick. The use of public money for the campaign to pass a tax increase is central to the complaints. The Kennewick Public Facilities District submitted a 2017 tax request that failed to pass a public referendum. The complaints say district officials did not follow state rules during the campaign for a sales tax increase.