Essa cena ocorreu no episódio II, onde
Padme had to go back to Naboo so she made him her proxy to the senate.
E depois Palpatine
Social engineered him into putting the motion before the senate (by looking at him and saying words to the effect of "if only there were someone brave enough to make this motion"). The motion was that Palpatine be granted emergency powers, which he used to raise a grand army of the republic aka the clone army aka the stormtroopers.
Então ele estava envolvido, mas se ele não tivesse feito isso, então Palpatine teria apenas enganado ou ordenado que alguém fizesse isso