darklordoftech said:

Amedda bogs Valorum down in procedure (after Sidious claims to have the Senate bogged down in procedure!), suggests that Palpatine be given emergency powers, and witnesses Sidious use Force Lightning on Yoda. I have concluded that Amedda knows the truth about Palpatine and is helping him.

All of Amedda's interaction that you mention sounds like a big yawn to me. I think the fact that his character has no introduction and we only even know his name from reading supplemental info shows that he's not really interesting enough to warrant this discussion.

I'd go so far as to argue that he's not worth keeping in the film he's IN, let alone added to another.

The politics of the PT have always been a problem regardless, but this monotone voiced blue alien does nothing to make this a good Star Wars movie. He's just insignificant and boring. You say yourself that his most significant action is that he "bogs Valorum down in procedure". That sounds exciting! Is this really what a Star Wars movie should be?

Now if the politics could be toned down while also given a revamp, that would be an improvement. Imagine a pompous and ambitious military captain using his background and influence as a leader to scare the senatorial masses into sanctioning the deployment of the republic army. That's actual political intrigue and corruption there, unlike what we got in the films. He's scratching Palps' back in order to advance his own career. It establishes his character as ruthless and willing to do almost anything to get what he wants - in other words, the very Tarkin we meet in ANH.