Guest host Arun Venugopal, host of WNYC's "Micropolis," is filling in today for Leonard. T.A. Frank, contributing writer for Vanity Fair, argues that Paul Ryan must decide whether to remain loyal to his political beliefs or to his role within the GOP. The founders of Pop Up Repair are here to talk about their mobile NYC-based repair service for household items. Pulitzer Prize and National Book Award finalist Adam Haslett on his novel "Imagine Me Gone," set in London during the 1960s. The New Yorker's Adam Gopnik discusses how breakthroughs in the science of touch have changed our understanding of human consciousness.