The descriptions given for why each tribal leader contributed to the failing of the Shouting Congress start out pretty reasonable: Hurricane is used to giving orders and having them carried out (plus hating Earth Ponies), and thus is frustrated at the other tribes not doing what he says. Aurum, meanwhile, is stuck having to pander to his court's outrageous demands in order to keep them loyal, demands which only piss off Hurricane. Then we reach the reasons for Puddinghead, which are summed up rather simply:
The eyewitness account of Smart Cookie being "elected" as Puddinghead's Secretary.
Puddinghead founded the Army of the Alfredo Sauce in order to protect the Republic from the "Evil Lich-Queen of the Cuttlefish of the Damned" living in Lake Trot. Which is ridiculous, since, as according to the in-universe author's notes:
"...there is no evidence either archaeological or modern or even in Folk Lore that there was ever an undead ruler of Cuttlefish at Lake Trot, of the infernal sort or no, mostly due to the fact that Cuttlefish are in fact marine and not freshwater dwelling."
Become a Brick Joke when, according to Clover's recounting, Puddinghead arrived in the cave on the night of the Warming and gave this as an "explanation" when Smart Cookie asked what she was doing there.
"The Lich-Queen's Stallion-Slave shall die tonight, for it has munched the wee men, and 'napped my good li'l Cookie."
During one of the side stories, when an upset Clover tells Hurricane that her father's died, he comforts her, saying she obviously loved her father a lot... only for Clover to say that her father ignored her and her brothers for everything except for using them as political tools. Hurricane's response?