What happened to ConstitutionDAO?

Could you elaborate on the recent developments surrounding ConstitutionDAO? It seemed to have captured a lot of attention when it was first announced, aiming to purchase a rare copy of the US Constitution. However, there have been reports of its failure to secure the auction and subsequent refund issues. What went wrong? Was there a lack of funding or perhaps some internal dispute among its members? Moreover, what implications does this incident have for the future of DAO-based crowdfunding models and the cryptocurrency community at large? I'm curious to understand the details and learn from this experience.