Uber-conservative Stephen Baldwin is bracing for a Baldwin brothers Christmas, where Alec, Stephen and Bill will likely clash over politics at their mother’s home in Syracuse. The outcast in a family full of liberals, Stephen admitted at the Cinema Society screening of “Casino Jack” at the Setai Fifth Avenue that conversations “get a little spicy now and again.” But no forks will be flung across the table, he assured: “We were raised with a dad who would smack you in the forehead with salad tongs if you got too out of line.” He added, “But there has been some fun conversations in the two Bush presidencies and now Obama. There’s been some pretty fun conversations.”