[BansheeBill]

What’s with the holding a pen in his right hand?
He did thid during the debate too.
I have seen Michael J. Fox do the same thing.

[Nachoman]

What’s with the holding a pen in his right hand?

He might be trying to control tremors in his right hand resulting from Parkinson's. In his last years, Hitler kept his left hand in a pocket or behind him to hide the tremors.

[mware]

I believe the pen holding is a technique to control motor skills.

[Sacajaweau]

It’s his binky....

[BradyLS]

Bob Dole famously held a pen in his right hand constantly and shook hands with his left due an injury sustained in WW2.

[Deaf Smith]

>>I have seen Micheal J. Fox do the same thing.

So did Bob Dole, but he got blown up in WWII.

[Varsity Flight]

Rolling Pill Syndrome. Parkinson’s symptom.