Paste the entire thing into the LLM! Maybe people can stop relying on unreliable partisan sources to interpret bills if they have tools to grok the dense weird language in them themselves. I say this even though I was embarrassed yesterday when the LLM misinterpreted something and I posted it - read the reference text behind any summary :/
Government Publishing Office and Library of Congress provides XML formatted bills and all their amendments and a feed of all changes to every bill.
Oh and on the topic of party politics, Bill Clinton was the one who had them put things online in the first place with the GPO Electronic Information Access Enhancement Act, and Barack Obama and the Democrats expanded it via American Recovery and Reinvestment Act of 2009 - not the do-nothing Republicans.
They are private by default. It's basically the same as every other AI chat app.