Yes. He did not actually have time to come out in favor of it,this being the conclusion of his own King-Crane Commission report. But he suffered a severe stroke and the U.S. failed to enter the League of nations,hence we were not able to obtain the Mandates for Palestine-Syria as the region was then known. Obviously from today's perspective a great deal of violence and bloodshed could have been avoided by establishing a single unified entity out of the region instead of permitting the British and French to carve it up. It would have meant stability,economic vigor,freedom of movement and foremost we might have been spared the devastating conquest of Palestine 1948-67 plus the endless attacks on the Lebanon,originally a part of Syria. The region had a common language,culture and economy. Could it still be done? Unlikely but an attractive notion; however there would be many hurdles to cross.