Should Congress have term limits? Congress imposed term limits on the Presidency citing corruption as the reason for this need after FDR broke the tradition of only two terms set by Washington.
"Politicians and diapers must be changed often.
And for the same reason."
Mark Twain
In general, I would say no. The easy example here would be your doctor...who generally has taken about a decade in schooling to even get his/her credentials. Would you be fine if your doctor had no required schooling and could only gain experience for a limited number of years (let's say 8). Do you think that our level of medicine would increase or decrease by capping out the number of years a person can practice medicine?
Likewise, being elected requires no schooling and no experience. You just have to be popular, and (like Trump) have money or be able to generate money from your friends. How to effectively govern a nation is something that is still debated today...less is known about governance than we know about medicine and anatomy...yet we require less credentials and experience from our politicians than we do our doctors. Now, idiots are thinking that we should shove out experienced people and keep rotating in new crops of idiots who have to learn from the ground up and then get booted out shortly thereafter.
Here is a thought...if you are concerned about the corruption of politicians...look at ways to reform the electoral system and get the money out of politics...looking at term limits is about as idiotic as chopping your arm off because your elbow itches. Money = corruption. It is literally that simple. Concentrate on the problem and ways to solve the problem, not on some made up convolution you heard on Fox News.