I thought this was very classy. Kudos to you Jenna & Barbara. http://time.com/4632036/bush-sisters-obama-sisters/
Fantastic gesture and sentiment. I understand there is a legitimate friendship between the families, which I believe is a great lesson for us all.
I imagine, for the most part, the ex-POTUS families all share a bond much akin to the ex-POTUS' themselves have with each other. It is a pressure cooker that none of us can even fathom.