A fellow aging NATO leader had to grab Donald Trump by the arm and physically steer him into position at a welcome ceremony for this week's alliance summit in Turkey. Both Trump, 80, and Turkish President Recep Tayyip Erdoan, 72, are under sustained scrutiny over the state of their physical and mental health. Trump has faced questions over rambling speeches, apparent dozing at public events, and the makeup masking bruises on his hands. Erdoan has drawn similar attention for verbal stumbles, moments of confusion, and a slowed walking pace. The footage, captured beside Air Force One after it touched down in Ankara on Tuesday, shows the pair shaking hands and talking before Erdoa clasped Trump's arm to lead him onto the carpet. Trump then stopped and turned toward a line of soldiers from what appears to have been the wrong mark.