They are actively creating a clickbait narrative about VP Harris, establishing concern that she might be called upon to step in for Joe Biden, and preemptively damaging her 2028 prospects.
It's all good for business.
They did it in 2000 with Al Gore and in 2016 with Hillary Clinton, and those "concern"-driven narratives helped to give us the Supreme Court that we are currently suffering under.
Hillary Clinton Gets Gored
By Paul Krugman
Sept. 5, 2016
Americans of a certain age who follow politics and policy closely still have vivid memories of the 2000 election bad memories, and not just because the man who lost the popular vote somehow ended up in office. For the campaign leading up to that end game was nightmarish too.
You see, one candidate, George W. Bush, was dishonest in a way that was unprecedented in U.S. politics. Most notably, he proposed big tax cuts for the rich while insisting, in raw denial of arithmetic, that they were targeted for the middle class. These campaign lies presaged what would happen during his administration an administration that, let us not forget, took America to war on false pretenses.
Yet throughout the campaign most media coverage gave the impression that Mr. Bush was a bluff, straightforward guy, while portraying Al Gore whose policy proposals added up, and whose critiques of the Bush plan were completely accurate as slippery and dishonest. Mr. Gores mendacity was supposedly demonstrated by trivial anecdotes, none significant, some of them simply false. No, he never claimed to have invented the internet. But the image stuck.
And right now I and many others have the sick, sinking feeling that its happening again.
https://www.nytimes.com/2016/09/05/opinion/hillary-clinton-gets-gored.html
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And now Nikki Haley is stoking the talking point by linking it to Biden's age.
Haley on 2024 election: 'It will either be me or it will be Kamala Harris'
https://www.cnn.com/videos/politics/2024/02/17/nikki-haley-2024-presidential-election-kamala-harris-trump-biden-src-vpx.cnn