It was hitting the jamb on the bottom. The hinges seemed tight, so I just hit it with 40 grit sandpaper since it’s solid wood. Hit it with some sealant and it looks good as new.
I had to retighten the handle too. When I went to do the final test I was a little worried it the handle might not work correctly so I made sure I had my phone, my leatherman, and a bottle of water “just in case”.
I was surprised and very happy how well it came out.
In my previous house, I installed an electronic lock on an external door. The door, however, sometimes wouldn’t close all the way, but my fellow occupants would just press the lock button and walk away. As a result, the bolt would press against the frame, twisting the mechanism and wearing at the wood. Eventually, it got bad enough that the hardware was freely wiggling in the door.
At the advice of a more competent co-worker, I tried this trick. It took three or four goes (I guess to fill in the cavity), but it worked.