(AP) — North America’s leaders are reviving three-way summitry after a Trump-era break. President Joe Biden, Canadian Prime Minister Justin Trudeau and Mexican President Andrés Manuel López Obrador will resume the tradition of the North America Leaders Summit on Thursday in Washington. Such meetings were dropped during the Trump administration. The three North American allies find themselves facing deep differences on migration, climate and trade as they meet this time. The North American summit tradition started with George W. Bush hosting Mexico’s Vicente Fox and Canada’s Paul Martin in 2005 for talks at his Texas ranch.