My guess is that at least one of them is largely only there to act as a lightning rod to draw all the leftist nutters to overstep and deflect criticism from the real nominee.
Likewise, I think at least one of the others is actually in contention, maybe even the favorite, and is being floated to get a sense of conservative reaction.
All very possible but my gut weighs in too.
It says Amy.
A woman from outside the Harvard-Yale “beltway,” - brilliant, well-respected and a former law clerk to the late great Justice Scalia.
GO AMY!