Here's something that's been puzzling me. Trump has undoubtedly seen an approval bump recently, and if there's any pollster you'd expect to reflect a Trump bump, it would be Rasmussen. But...they haven't. I plotted their daily approval ratings for February and March:
As you can see, it was relatively stable through February, then took a sudden drop to a new level a few points lower, and has stayed there through March.
Data source: https://www.rasmussenreports.com/public_content/politics/trump_administration/trump_approval_index_history
Rasmussen's polling has always had a tilt toward the "investor class". They have taken the biggest hit, have they not? I would think that their sample is a bit heavier on the investor class and those folks probably think Trump could have managed this in a way that didn't tank the economy.