Unlike you, Nash, and many of us on this board, including me, Bob Dole earned the right to have his opinion regarding Kerry. Whether agree with his political bent or not, his service and the serious wounds he received on the battlefield gave him the right to speak his mind on this.
You can bring up the grenade off the tree thing all you want. Fact is he served beyond that point and was gravely wounded in combat.
On a personal note, my mother worked for Bob Dole when he was a County Attorney in Russell, KS.
Seems he was a decent guy to work for back then. Go figure.