A reminder that evangelical doctrine, up to and including the wildly popular Left Behind book series where the Democratic president essentially does exactly this, has for decades insisted this is how the antichrist will reveal himself.
"Please right your right hand. I pledge to the greatest president in history that loves us so much he can't even breathe" -- in extremely culty scene, Trump has his supporters pledge to him that they will vote, then tells them they will "go to hell" if they don't
Here's the full sequence: