The outgoing and incoming U.S. presidents had different messages for the Christmas holiday, with Democrat Joe Biden urging Americans to reflect and unite and Republican Donald Trump offering a holiday greeting and a flurry of politically focused social media posts.

Among the new laws signed by President Biden are Paris Hilton's bill to protect institutionalized teenagers and a bill to address hazing on college campuses.

President Joe Biden signed a bill this week aimed at preventing hazing on college campuses and building transparency around hazing incidents — the first federal law of its kind. Though most states have enacted laws aimed at curbing hazing with tougher penalties or some sort of public reporting system,