2006 Libertarian Senate candidate John Butzier died in a plane crash yesterday . He was a medical doctor at Mercy Medical Center - Dubuque . The cause of the crash is still unknown . Butzier 's name will remain on the ballot in the November election .
Iowa Libertarian Senate candidate Doug Butzier dies in a plane crash Monday . He was a medical doctor at Mercy Medical Center-Dubuque . The cause of the crash is still unknown . Butzier 's name will remain on the ballot in the November election .