Here's video of Trump leaving Walter Reed and ignoring a question about "do you think you are a superspreader, Mr. President?"
Trump immediately took his mask off when he got back to the White House
Here's a better look at Trump immediately taking off his mask when he reached the White House. It looks like he motioned for photographers to come up near him and take photos.

For a guy who says he's feeling better than he has in 20 years, Trump sure made a lot of uncomfortable-looking faces during his photo op