One thing I thought of was that Beau Biden was running for governor of Delaware for 2016 when he dropped out due to his health and eventually passing. I wonder what if he didn't die and won governor. Would he have been a presidential candidate in 2020?
They also made sure Biden vehemently denied leaving the race so Trump would think he isn't going anywhere and attack him at the convention only for Biden to pull the rug out from under him.
I think Walz is an underrated. Minnesota is probably blue but he probably has appeal in Wisconsin and Michigan. I'm surprised Bashear wasn't on the list. Good with rural white voters and suburban voters. He did well in Appalachia which could play well in Pennsylvania and in the south in Georgia and North Carolina.