Term limits
The short answer is yes, but also know that Congress is elected every two years and gets a new number each time. Every other congressional election -- that is, once every four years -- there is also a presidential election that coincides with the congressional elections and again congress gets a new number.
YES! The people decide when the senator is no longer fit to serve in Congress.
If you are talking US Congress then there is no limit to the number of terms a congressman (or Senator) can serve, so they can be reelected as many times as they want if they can get the people to vote for them.
There are no legal restrictions on the number of times a congressman can be re-elected.
Members of Parliament (MPs) are elected through general elections or bi-elections by the residents of their constituency that are eligible to vote. The candidate with the highest number of votes is subsequently appointed as a Member of Parliament.
Term limits
Term limits
Term limits
Term limits
Term limits
A representative to the US Congress (either to the House of Representatives or the Senate) has no restriction on the number of times they can be elected.
There is no limit to the number of times a member of the House of Representatives can be elected.
There is no limit to the number of terms a member of Congress may serve. As of December 13, 2013, Representative John Dingell of Michigan had the longest service of any member of Congress, 58 years, having been elected 29 consecutive times.
There is no limit to the number of terms to which a member of the House of Representatives can be elected.
A representative to the US Congress (either to the House of Representatives or the Senate) has no restriction on the number of times they can be elected.
There is no term limit (maximum number of elected terms) for the US Congress.
There is no limit to the number of times a representative can be elected to Congress.