Star Wars: The Clone Wars - Season 3 Episode 10 -

When the Senate begins debate on a bill that would eliminate government oversight of the Banking Clan's activities, Padmé and Ahsoka travel in secret to the capital of the Confederacy of Independent Systems, in an attempt to forge a peace agreement with the Separatists. However after both the Republic and Separatists agree to have a peace conference, Dooku orders General Grievous to dispatch a group of droids to launch a terrorist attack on Corucsant, resulting in a failure of peace.