US President Joe Biden on Saturday invited his Emirati counterpart, Sheikh Mohamed bin Zayed Al-Nahyan, to visit the United States, after months of strained ties over the Ukraine war and other issues. “We both understand that the challenges we face today only make it a heck of a lot more important that we spend more time together. And I want to formally invite you to the States,” Biden said after the two men met on the sidelines of a gathering of Arab leaders in Saudi Arabia. Biden specified he was inviting Sheikh Mohamed to the White House – “the Oval” – and said he wanted the visit to happen…