In the 2008 Superbowl, David Tyree caught a ball on his helmet, gaining 32 yards, and setting the Giants up for their game winning touchdown. It was the Hail Mary pass to end all Hail Mary passes, it was named the Play of the Decade, and it meant the Giants won the Superbowl over the Patriots.

This is all to say that sometimes, Hail Mary passes are very successful. That's why people keep throwing them. But for every Helmet Catch, there are dozens, nay, hundreds, of failed Hail Mary tosses. The Stop Trump movement within the Republican party, is one such failure.