What is the difference between a U. S. senator and a U. S. representatives?

Unwritten Rules: The Difference Between a Congressman and a Senator ... Representatives and senators both are elected by popular vote in each state in the U. S. However, while each state elects exactly two senators per term, the number of representatives per state are apportioned according to the state's population. Apr 13, 2016

Senators: look at article 1 section 3 of constitution

rep: article 1 section 2 (for more details)

sen serve for 6 year terms, 2 sen per state (equal), must be 30 years and 9 years citizen. Have the sole power of impeachment

rep 2 year terms, proportional representation by census, must be 25 years and 7 years citizen, can call for trials of impeachment. (house holds trials and then senate can remove from office with 2/3 majority)