Donald Trump Mixes Up Nikki Haley With Nancy Pelosi at Rally

Donald Trump, who is 77 years old, insists he's mentally fit for the presidency. “A few months ago I took a cognitive test my doctor gave me,” he says. “I aced it but I also took one when I was in the White House.” The test is called the Montreal Cognitive Assessment. However, there’s concern over Trump’s mental acuity after he confused Republican rival Nikki Haley with former House Speaker Nancy Pelosi.