I wanted to ask Dean the same question (my mom is 79 tho) and hung around the entrance door hoping to shake his hand and get his ear.  When he arrived though he was surrounded by half a dozen guys serving as a shield who very quickly wisked him through hall. (maybe Dean's taking a lot of heat these days?) What a contrast with Jeanne Shaheen's entrance/exit -- she talked with everyone she met.

btw,  Wasn't Jeanne's speech great? -- loved the "one vote does count" theme.