Donald Trump struggled to find his new best friend from Finland at Monday's Ukraine peace talks, even though President Alexander Stubb was seated right opposite him and the pair are officially golfing buddies. Lately he has suffered a series of "senior moments," repeatedly saying he was going to Russia when in fact he was headed to Alaska, forgetting the name of a "big" war he supposedly ended, writing incomprehensible social media posts, and losing track of people standing right behind him.