>> grim future for president biden's social spending gill, if senate democrats work on a smaller package it would still have to go through a process, some call a bird bath. congressional correspondent explains. >> everyone on capitol hill, is tripping about the bird rule. >> a bird rule. >> there is the bird rule. >> be sure what we send is not birdable. >> through what is known as the bird rule. >> named after legendary west virginia senator, majority leader robert byrd. >> not just some guy. not just a senator. he was mr. process, mr. institution. >> if one knows the rules and precedence, th...