Nikki Haley raises concerns over Biden's age and health.

GOP presidential contender Nikki Haley predicts that President Biden would likely die within five years if re-elected, leaving Kamala Harris as president. Haley has previously called for cognitive tests on all candidates over the age of 75. Biden, who is currently the oldest president to serve office, assured Americans that his age was not an issue. Critics have pointed to gaffes during his presidency as a sign of declining mental health. Haley continues to trail in the polls behind Trump and Florida Gov. Ron DeSantis.