Evidence: Donald Trump 'bought' a load of pianos.
https://www.independent.co.uk/news/world/americas/i-sold-trump-100000-worth-of-pianos-then-he-stiffed-me-a7335951.htmlWhy? So that he could practice his scales. Reptiles have scales. This is proof that Trump is the Reptile-in-Chief and has been buying up industrial quantities of supplies for his lizardy minions.
Want further evidence of his saurian credentials? Okay...
Here he is basking under heat lamps.

And here are some eggs he laid at the White House.

Also, I think this thread badly needs the input of @notbatman to provide a sanity injection.