The council will make up its own mind who is to go, not the chancellor.
6 seconds sound clip from the Star Wars: Episode III - Revenge of the Sith movie soundboard.
You can hear this line at 00:48:57 in the Blu-ray version of the movie.
Quote context
[...]
- A partial message was intercepted in a diplomatic packet from the chairman of Utapau.
- The capture of General Grievous will end this war.
- Quickly and decisively we should proceed.
- The chancellor has requested that I lead the campaign.
- The council will make up its own mind who is to go, not the chancellor.
- A master is needed, with more experience.
- I concur. Master Kenobi should go.
- I agree.
- Aye.
- Aye.
- Very well. Council adjourned.
- The droids have started up their main power generators.
- Then now the time is, Commander.
[...]