That’s too much. One 6 year term for president. Two six year terms for Senators. No more than 12 years for Reps. 12 years on the SCOTUS. No more lifetime appointments and career politicians.
There is just no getting around the fact that career politician equals corrupt politician. Vote trading, under the table agreements that do not benefit the country and crony capitalism are the most corrupting things in politics. When someone tells me how a teacher (L. B. Johnson) can enter politics and leave a millionaire with a huge ranch I might change my mind. He left teaching and only had a political position, so where did the money come from??? And there are probably many more that we don’t know about.