Spoiler: soooo... One thing I never saw explained was how Ishan knew he'd become President Pro Tempore once Bacco was killed. Or did he just have her murdered for the hell of it? Also, why doesn't the Federation government have a Vice President role? In a civilization as vast as the Federation, one would think we'd want someone in the role for, at the very least, delegation purposes. Or, y'know, for exactly what happened.