It's all conspiracy theory's Lmcat... I have no idea why he was wearing a ring on that finger, what year was that picture taken?

I'm only in my thirties, and a majority of my friends are now married, besides the ones that are still living the bachelor life.

For all I know, that ring could've been worn as a promise ring to represent his love for his beautiful wife. I've had friends wear wedding bands when they weren't married and I made fun of them for it.

Then there's also guys that wear rings on that finger to do the total opposite as you just said when they go out. I'm not saying it's right and I'm definitely not saying the President would ever do this.