I've seen previous posts about Jackson. He's a relic of a different era, joined the Texas Rangers when the 38 Special, pump gun, and, for the Texas Rangers, the Winchester 94 were the only firearms. Jackson did serve until 1993, but I suspect he's just pining for the good old days.
He's on the board because of his fame as a Ranger, and I suspect he''s had a number of frank discussions by now about not supporting the people who want to kill off the 2nd Amendment.
Actually Joaquin is a creature of the Texas DPS when it carried the Model 28 Highway Patrolman in 357 Mag and most Rangers carried 1911A1s (or rather Government Models) in 45. Interesting fella, but I think he's gone senile or something.
No, Joaquin isn't an idiot. I've met him, been probably five or six years ago, and he didn't show any sign of having this sort of idea then. Fairly bright guy at one time, so I suspect senility has set in.
As far as the "good" senator is concerned - he panicked as a lot of people do when picked up for a truly embarrassing (if unsustainable) charge. And could be he does have something to hide (if I lived in Idaho and was queer, I'd try hard to hide it - and there have been rumors for several years).