When a United States senator visits town, he can expect to face questions about everything from local to national issues.

That's what Sen. Bill Nelson encountered Wednesday in Gainesville.

At a town hall meeting, everything from Trayvon Martin to local sewage problems to potential war with Iran were brought up.

About two dozen people -- including several  city and county laders -- were there.

Nelson talked about fighting the state's new election laws and bemoaned the gradual loss of power of Florida's water management systems.

The senator also discussed what he said is a popular subject in town hall meetings across the state -- economic recovery.

Nelson is in the middle of a town hall tour of the state.

He is campaigning to be returned to the senate.

Republican candidates include Congressman Connie Mack, former Sen. Geroge LeMieux, and retired Army Col. Mike McCalister.