An extended deadline and expiring funding cloud the question of bringing federally recognized tribes into the Chesapeake Bay Watershed Agreement as full partners.By Aman AzharVirginia’s seven federally recognized tribes said they’re cautiously optimistic about their prospects of becoming full signatories to the Chesapeake Bay Watershed Agreement even after program leadership missed the July 1 deadline for presenting a roadmap on how to include the tribal nations, pushing the question to December.