Dover: Martin Truex Jr. ends 54-race winless streak; Ross Chastain in another crash controversy with Kyle Larson; impressions of attending Supercross in Nashville

NASCAR on NBC analyst Steve Letarte on Martin Truex Jr. ending a 54-race winless streak at Dover; the bickering between Truex and crew chief James Small and whether it actually is good for their working relationship; Ross Chastain’s controversial wreck of Brennan Poole that took out Kyle Larson; Chastain’s apology; echoes of Dale Earnhardt?; what’s next for Chastain working with the rest of the field; strong performances for Toyotas, Roush Fenway Keselowski Racing; weaker performances for Team Penske and Richard Childress Racing; the struggles of Austin Dillon amid his emergence as a de-facto general manager who recruited Kyle Busch to the team; Steve’s first time at a Supercross event and working in a broadcast booth with Ricky Carmichael and James Stewart.