The East Wing of the Republic Executive Building was a set of offices and hallways on the eastern side of the Senate Annex Dome. This wing was the location where Cad Bane and his team of bounty hunters captured several members of the Galactic Senate during a meeting to discuss the Enhanced Privacy Invasion Bill.
In the main area Senator Philo was shot and killed by Bane when he attempted to leave. The atrium was destroyed and the wing damaged when bombs set by Bane and his team detonated. The senators were saved by Jedi Knight Anakin Skywalker.