He has claimed to be a Christian in public on many occasions.
Did Hitler or Stalin do the same, do you know?
Joseph Djugashvili, as a young man, studied at an Orthodox seminary, but some rough bad habits got him expelled. Stalin, as he was later known, chose to be an atheist for the remainder of his life, taking up the fevered pursuit of socialism and anarchy as a substitute for any religious passion.
Adolf Hitler was at least nominally a Roman Catholic, but again, as a young man, he failed to heed the admonishments of his instructors, and also slipped into atheism, with some elements of the old naturalistic Gothic paganism making up a large part of his belief system.
Hitler, most definitely and at length.