From sending formal cards to celebrating in Palm Springs to hanging Abraham Lincoln ornaments, America’s presidents have marked Christmas in ways that reflect their personalities. Those celebrations are the focus of a new exhibit opening next month at the Abraham Lincoln Presidential Library and Museum. “Holidays at the White House: A Presidential Christmas” opens Nov. 17 and runs through Jan. 7. It features photos and original artifacts from four administrations: Dwight Eisenhower, John F. Kennedy, Bill Clinton and George W. Bush. The special exhibit is free with regular admission to the Lincoln museum.