Plaintiff sued for a violation of the Brown Open Meeting Act. The suit was timely filed, but plaintiff delayed in seeking a ruling on whether the defendant had improperly conducted a non-public meeting which might have invalidated the dissolution resolution it adopted at the meeting. Based on the resolution, defendant proceeded through the formal steps to dissolve, including holding a public election on the issue. Only after a majority of voters supported dissolution did plaintiff seek a ruling on whether the resolution, passed a year earlier, was invalid due to the alleged Brown Act violation. This decision holds that laches barred the suit at that point. Plaintiff had inexcusably delayed to the prejudice of the defendant and the voters.