You can go through the voting records an various bills and see how they voted, it's all public data. I challenge you to do it one day, and you can see the difference between what they say in their speeches and what they actually do policy wise.
You can also cross that data with polling from the respective senators or representatives on individual policies and see how they line up. You can see quickly that they do not represent their constituents if you take the time to do it (I've done it myself).
You can also cross that data with polling from the respective senators or representatives on individual policies and see how they line up. You can see quickly that they do not represent their constituents if you take the time to do it (I've done it myself).