It's hard to know what to believe these days with all the biased news reports and fake news. We can't even count on our own representatives to tell the truth, much less represent us. All we can do is try to keep up with the bills they are proposing and stay on top of our elected officials to make sure they are representing our needs.
I'm gonna give the GOVTRACK.US site a try:
They publish the status of federal legislation, information about your representative and senators in Congress including voting records, and original research on bills and votes.