Stewart’s cavalry arriving in the rear, just as Pickett reached the ridge...
If not for Custer’s headlong charge into a much larger force, it would be a very different world, today...
“Give’em Cold Steel boys”.
Custer saved a small battle, but Stewart’s cavalry wasn’t going anywhere. They were utterly worn out by the time they got to Gettysburg. That’s precisely why Lee had them on the perimeter, out of the battle. Men arrived at camp on the night of July 2/3 falling out of their saddles, their mounts starved. It wasn’t a group capable of anything except cavalry vs. cavalry action, and it’s another reason (as well as Custer’s heroism) that they were stymied that afternoon.