you're right on the impeachment part anyway---if lying to a judge won't getcha impeached there is a problem. That also makes my point tho---the Guys in Congress that blocked impeachment of the LIAR IN CHIEF would have already been gone if a 12 year SENATE limit had been in place. The basic notion of citizen service in gov't as opposed to career nestors in DC still appeals to me and is in line with what the founders had in mind.
The founders visualized a period of service in the capitol after which they would return to the plantation---this current crop sees a career of service during which they write up a subsidy program for the plantation. And how about a limit on the number of federal facilities that can be named after a "congersman" (apologies to POGO)?