After ending his decade-long run in the successful band alt-country band The Jayhawks, opener Mark Olson moved to the country with then-wife Victoria Williams.

NPR: The Polyphonic Spree and Mark Olson in Concert

Dual frontmen Mark Olson and Gary Louris had the best harmonies in the business few others even came close and when Olson left the band in 1995, neither he nor The Jayhawks were ever the same.

NPR: Mark Olson And Gary Louris: 'Pretty' Voices

Many political scientists argue that the traditional view that pressure groups create a healthy democratic pluralism is nearer the mark than Olson's thesis.

ECONOMIST: POLITICS BRIEF