nonetheless, outside of all of that, jeanie mos points out all you have to do is look at his arms to see that. reporter: when beto o rourke literally jumped into the presidential race, he was up in arms, his arms. beyond a shadow of a doubt, if you look at the climate to get all of this done, we would be fools. reporter: disarming beto was not an option. i think we should begin with the end. reporter: even when sitting with his wife the last great hope of earth. reporter: his other arm kept escaping from her clutches. from every single one of us r. it was almost as if he were doing sign language. even president trump tipped his hat to beto s hands. well, i think he has a lot of hand movement. i never seen so much hand movement. i said is he crazy or how he acts? study him, i m sure you ll agree. reporter: study him.