Recent Presidents would be a more accurate statement. Washington and Lincoln certainly were. Probably most of the early US presidents were.
And we have evidence lincoln was religious where again?
Some time since I promised you that I would send you a letter in relation to Mr. Lincoln's religion. I do so now. Before entering on that question, one or two preliminary remarks will help us to understand why he disagreed with the Christian world in its principles as well as in its theology. In the first place, Mr. Lincoln's mind was a purely logical mind; secondly, Mr. Lincoln's was a purely practical mind. He had no fancy or imagination, and not much emotion. He was a realist as opposed to an idealist. As a rule, it is true that a purely logical mind has not much hope, if it ever has faith, in the unseen and unknown. Mr. Lincoln had not much hope and no faith in the unseen and unknown. Mr. Lincoln had not much hope and no faith in things that lie outside of the domain of demonstration; he was so constituted, so organized that he could believe nothing unless his senses or logic could reach it. I have often read to him a law point, a decision, or something I fancied. He could not understand it until he took the book out of my hand, and read the thing for himself. He was terribly, vexatiously skeptical. He could scarcely understand anything, unless he had time and place fixed in his mind.--Letter from William Herndon to Francis Abbott, 1870Perhaps closer to Clinton than Washington. I will agree most of the earlier Presidents were strong in their faith