Former media consultant for George H.W. Bush and George W. Bush, Patrick Griffin ( @PatWGriffin) , and former democratic Representative from New Hampshire, Richard Swett   ( @rnswett) , talk developments in the 2016 presidential race, and American political dynasties. 

Masterpiece Mystery! host, Alan Cumming ( @Alancumming ), talks his new emotional memoir ' Not My Father's Son .'

And WGBH Arts Editor Jared Bowen ( @JaredWGBH ) profiles performance artist, Joan Jonas , whose work is being featured locally, and a world away.