Tour de force. My inner debater exploded with multiple angles of skepticism at the first photo, and by the last had lapsed into shellshocked silence.
Presidents have definitely gotten more Bankid/Melony over time. Hooded eyes also seem to be becoming more common based on these morphs. Excellent work!
The sockets have collapsed from rounded tops to horizontal lines, and it looks like the cheekbones moved forward to reduce peripheral vision, giving the latter an overall appearance of predators.