and those I can't find but I'll most likely keep looking, jusy have to head to TIL and research a bit.
In the dossier, it doesn't say the Elves told him lies about the Emire. It says they lied, saying that information Ulfric was tortured for was instrumental in capturing the Imperial City.
As for Torygg, all that suggests is that Torygg didn't believe 100% in the Empire. He still was too cowtailed to act on his own, and that's why Ulfric challenged him.
Because it wasn't the time to act the Dominion was a threat and the empire needed to be united if a victory against them would work, but Ulfric wouldn't listen and believes e can still get enough support from other provinces to attack the Dominion but did he try to get them before pushing the empire out? No he didn't and thats why he could've cost Tamriel the lives of thousands if not millions if he won the civil war, because he was to rash and didn't make allies.