You don't believe Democrats because they compromised with Republicans to get a bill passed?
If you recall, Republicans used the filibuster in the Senate, which meant Democrats needed a 60 vote supermajority to get a healthcare bill passed. When they floated the idea of a Medicare-for-all bill, Republicans promised to filibuster in the Senate.
Democrats compromised with Republicans on policy that Republicans wrote themselves, and Republicans still filibustered and not a single one of them voted in favor of it.