Senator/ˈsenətər/ Definition 1 of 2Pro Tip 1/3Election Process Senators are elected by citizens to represent their interests in the government. Did you vote for your state senator in the last election? Pro Tip 2/3Term Length Senators usually serve for a set period, which varies by country. Our senator was just re-elected for another term. Pro Tip 3/3Political Parties Senators often belong to political parties which influence their legislative agenda. The senator aligned with the conservative party's views.