To vote someone into a particular position or office. A noun or pronoun can be used between "elect" and "to." I had hoped to be elected to the student government, but a more popular boy beat me out. Why do we elect these do-nothing fools to Congress anyway? You've got to have a ton of influence in the city for the people to elect you to City Hall.

to select someone to be a member of something by ballot; to select someone to be an officer in something by ballot. We elected you to office, so do your job. Tom was elected to the congress.