But comparing Trump’s stumbles to his predecessor’s was a questionable tactic after Trump, 79, and his Republican allies have repeatedly attacked the former president, 83, for cognitive decline. Democratic Senator Tim Kaine raised the president mixing up Greenland and Iceland during his turn to question Rubio. President Donald Trump repeatedly said Iceland while taking aim at Greenland during his address at the World Economic Forum in Davos, Switzerland. “The president repeatedly mistook Iceland for Greenland, right? “Yeah, he meant to say Greenland, but I think we’re all familiar with presidents who have verbal stumbles,” Rubio quickly shot back.