Appearing on MSNBC on Thursday, longtime GOP strategist Stuart Stevens admitted he was baffled why Donald Trump’s brain trust would plop their candidate in a trash truck for a photo-op less than seven days before voters go to the polls. Speaking with host José Díaz-Balart, Stevens noted it seemed to be an unforced error to remind voters once again about a MAGA comedian creating a firestorm over calling Puerto Rico an “island of garbage” at a New York City rally earlier this week. Speaking with the host, Stevens was asked about the former president spending his precious last few days before vot…