Dale Earnhardt Jr. is back from the Racing Capital of the World to join co-host Mike Davis for another episode of Dirty Air. After a compelling NASCAR race weekend in Indianapolis and some new developments in the life of fatherhood, the guys had plenty to unpack: Isla’s first day of kindergarten Michael McDowell’s emotional win How did the road course ringers fare?  Is the Indianapolis Motor Speedway oval coming back? Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.