Why can't Trump become Pope?
At breakfast time, an Executive Order can make him a Catholic.
At morning tea time, an Executive Order can ordain him as a priest.
At lunch time, an Executive Order can consecrate him as a bishop.
At afternoon teatime, an Executive Order cam make him a cardinal.
At dinner time, An Executive Order can make him Pope, taking the name of Upid XLVII.
At supper time, an Executive Order will canonise him as St. Upid XLVII