You are mistaken. Bribery and corruption are not protected by the first amendment. Try offering a police officer some cash next time you get a speeding ticket. Or setting up a nice deal to put kids in jail [1].

Of course, this only applies to me, you, county judges, etc. Not senators. Not SCOTUS Justices. Not the people who have the most to gain from such corruption. Not the people who actually decide such laws. Fancy.

[1] http://articles.cnn.com/2009-02-23/justice/pennsylvania.corr...