We went over this before. I gave quite a few examples of presidential candidates from the recent past, from both sides, taking longer to choose than Joe has. Why is this an issue for you? Here's a refresher for you from the last time you were spazzing out about this.
John McCain announced Sarah Palin would be his running mate on August 29th, 2008.
Obama announced Biden on August 23rd, 2008.
Mitt Romney announced Paul Ryan August 11th, 2012.
Donald Trump announced Mike Pence on July 15th, 2016, but he’s a Russian owned traitor and Pence is a no talent closet case.