From an analysis on politico.com by Jeff Greenfield headlined “Will Kamala Harris Harm Joe Biden’s Reelection Chances?”:

Nikki Haley is not going to win any awards for subtlety when it comes to raising doubts about the president’s reelection bid.

In speaking about Joe Biden’s age last month, Haley said: “I think that we can all be very clear and say with a matter of fact that if you vote for Joe Biden you really are counting on a President Harris, because the idea that he would make it until 86 years old is not something that I think is likely.”