Snopes is your friend: http://www.snopes.com/politics/medical/28thamendment.asp
It’s mostly false.
Congress does pay into Social Security, just like everyone else.
Congresspersons cannot retire on full pay after one term. Their pension is determined by a number of factors, most notably length of service, but also age at retirement, when they started in Congress and their salary. And, by law, their pension cannot be more than 80% of their salary.
Congress also made themselves subject to most laws that they pass in 1995.
Likewise, Congress is not exempted from HCR. The new law mandates that you must get insurance. If you have it from your employer, then you’re covered. Congresspersons, being federal employees, have health insurance through their jobs, just like millions of other people.
The Wolf