Ok, so you think a president is like Trump and we're supposed to get all tingly about sieg hielling him on the sheer awesomeness of his awesome orders.
No.
It's basically a prime minister, only yous had to make up a different name for the gig so you wouldn't look like you were copying us when you were copying us.
hahaha, is copying us all you do?
In other words, the president presides (get it?) over congress. He doesn't rule by decree. Even your King Chuck can't do that. He just poses for photos in silly over the top outfits to stimulate the tourist industry.