It's good to get out and exercise your civic duty.
Al wakes up and realizes that it's election day.
Al wants to decide whether to vote today.
Al gets out and votes for the policies he believes in at the voting booth.
Al doesn't vote because there is no way [unpopular politician] can possibly win.
The politician Al supports wins the election thanks to voters like Al.
The unpopular politician barely wins because so much of his opposition didn't show up and vote.