Depending on what you meant by this question, I’d say Perplexity. It’s got access to a number of different LLMs, and cited its sources. The biggest concern I’ve had when it comes to LLMs is that they eventually make shit up. If you can verify its answers by checking its sources, you have a much higher confidence level in the answer.
I think your question is misguided. Democracy doesn’t mean a two-party system race to the bottom. Democracy can see democratically elected politicians that better resonate with each individual voter by eliminating first past the post voting and using ranked choice voting instead. The problem isn’t that “half the country disagrees”. You can’t please everyone. The problem is that we’ve been divided and weaponized against each other, so the tribalism keeps us from finding common ground we may have. I doubt anyone votes FOR a candidate anymore. They seem to just vote AGAINST another candidate. Democracy works. It’s our implementation of it that’s failing.