I don't think they should act like the Republicans did under Obama and vote against things they actually believed in just to make him ineffective. If they genuinely vote for things they believe in, maybe Trump will feel more of a reason to compromise instead of digging his heels into the dirt further and further and stomping on them anyway. It's because they did this that the country got further divided and less bipartisan.

But yes, Democrats better do whatever they can to stop anything that's outrageous or they don't believe in even a little bit. No "Oh, the people have spoken, so we better go along with it" shit. Republicans pulled every dirty trick they could with Obama, so they should feel free to do the same.