Repubulicrats

How do we know that there is no difference between Republicans and Democrats?

http://www.breitbart.com/big-government/2015/06/11/paul-ryans-pelosi-esque-obamatrade-moment-its-declassified-and-made-public-once-its-agreed-to/

They both claim that we will only know what is in a bill after we pass it.