The key phrase here is "than to". Note this is not the same implication as "than"

Consider these:

Some cultivars of corn are much more closely related to sorghum than they are to other cultivars of corn. - This asks: which of these is some cultivars of corn more closely related to? Sorghum or other cultivars of corn?"

Some cultivars of corn are much more closely related to sorghum than other cultivars of corn. - Now this asks a different question: which is more closely related to sorghum? Some cultivars of corn or other cultivars of corn.

Our video asks the first question using "than to"

Hope this helps!

For the second question, Lawgic confused me. I'm trying to remind myself that I must always identify conclusion & premise first because I have gotten carried away from it by going straight into Lawgic. Here's how I eventually bailed myself out:

Identify the conclusion: Therefore, the vote to grant the Chancellor emergency powers will not pass.

Why won't this vote pass?: Because Amidala's assasination failed. (that's what the passage is insinuating)

What has that got to do with anything?: Amidala has a speech to give but cannot deliver her speech unless the attempt to assassinate her fails.

Why is this speech important to this situation?: Because The vote to grant Chancellor Palpatine emergency powers will not pass if Senator Amidala delivers her speech

If "...speech" is the sufficient condition, not a necessary condition for the vote not passing.