What happened to Biden only running for one term?

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Ruvan22 posted...
Are you going to answer any of the criticisms of your OP I raised? I can't speak for 2019/2020 Biden but I imagine the reasons listed in the article were why he at times he was considering and other times wasn't.
It wasn't a sure thing like I thought, but it was definitely a consideration which I think is still noteworthy. For example from the article:

Another top Biden adviser put it this way: Hes going into this thinking, I want to find a running mate I can turn things over to after four years but if thats not possible or doesnt happen then Ill run for reelection. But hes not going to publicly make a one term pledge.

So does that mean Harris is a not a good running mate? Also, why would the article having been written before he was elected make a difference? If he wasn't elected then he would've been a zero-term president. No way could I see him retrying in 2024 if he lost in 2020.
https://imgur.com/a/FU9H8 - https://i.imgur.com/ZkQRDsR.png - https://i.imgur.com/2x2gtgP.jpg