Earlier quoted context omitted.
I think you overestimate the average politician. They may not bother with the internet. I'm confident Senator Lamar does not. But really, i don't think it would take very long to figure out where he and his staff in DC and in Tennessee live. I don't know what the data purchase rates are, so that could be expensive. But buy the data for a bunch of neighborhoods. Perhaps 50,000 people. watch the data for a while, query…
Getting the information through their ISP may be too subtle. Just send them a FOIA request for the browser history. When they ask why or deny it, you can raise the question of why they want to keep their information private, but allow our information to be fair game.
The big deal is when you drop a report full of embarrassing information you collected without their knowledge and they are powerless to stop it because of their own bill they passed.