"Maybe it is time to go for a constitutional amendment to impose term limits on congress critters."
You apparently are not paying attention. We already have term limits and results yesterday demonstrated it.
You apparently haven't been paying attention for the past few decades where except for the occasional wave of discontent incumbents remain in office for far too long.
Why is some scumbag like Foley or Sherwood or Ney hanging out so long? Why do I have to listen to Kennedy or Schumer or ... ad nauseum ... any more?
The congress should be like the military: either you move up or you move out. If a congressman can't get himself elected to the senate after a few terms in the House he should go back to being a scumbag lawyer. If a senator can't get himself elected to be governor or president he should go back to being a scumbag used car salesman.