New Social Science Fraud

We rely on the social sciences for help in solving policy and legal puzzles. Unfortunately, fraud is rarely discovered and is probably more prevalent than we think. I am reminded of the Bellesiles fraud. Given that most of academia leans Left, I wonder how many "progressive" policies are based on unreliable studies and data. Don't get me wrong, there are academics on the Right who are guilty of the same thing.
There are just more academics on the Left.