The rumor going around and that Trump himself has hinted at several times is that there's major in-fighting within the DNC. Team Clinton wants Harris. Team Obama wants someone else. Someone posted the Biden endorsement to Twitter before this was all sorted out. Now they're stuck with Harris, although, IMO, there's a nonzero chance she gets the boot at the DNC convention. Trump has hinted at that as well.
Walz: The rumor is that he was the only one on the list willing to accept the job. The stronger candidates are sitting this mess out until 2028.
The rumor going around and that Trump himself has hinted at several times is that there's major in-fighting within the DNC. Team Clinton wants Harris. Team Obama wants someone else. Someone posted the Biden endorsement to Twitter before this was all sorted out. Now they're stuck with Harris, although, IMO, there's a nonzero chance she gets the boot at the DNC convention. Trump has hinted at that as well.
Walz: The rumor is that he was the only one on the list willing to accept the job. The stronger candidates are sitting this mess out until 2028.