If you're a Democrat legislator, there are four possible strategies for negotiating with the three kinds of people on the other side.
The first is: Fuck you, we have a majority.
That's where you don't negotiate. If you have a slight majority, you push your agenda.
Second option: you can trade with the people who like Trump's policies.
Give them reduced immigration and a wall in exchange for Medicare for all.
This is a policy trade you can (conceivably) make.