Car geek Jay Cassill offers tips on keeping your car from breaking down on its 4th of July trip (and he solves the mystery of what your tire pressure should be this summer!); Attorney Wendy Patrick on a horrifying murder in Utah; Brad Anderson of the Des Moines Skatepark Campaign reveals a big new detail about the upcoming skatepark and gives Jeff a timetable for completion; and political insider Ash Wright discusses the eye-popping fund-raising haul by President Trump and what his campaign will do with the money. Click to listen to hour 1 of #needtoknow with Jeff Angelo for 7/3.