Here are the topics covered in this edition of Byline:At the top - After months of campaign ads — and some would say its seems longer --- primary election day arrives in Kentucky next Tuesday. At the top of the ballot is the U.S. Senate race between incumbent Republican Mitch McConnell and challenger Matt Bevin. The winner of that race will face presumptive Democratic nominee Allison Lundergan Grimes. On the state level, Republicans will be positioning themselves in hopes of gaining control of the Kentucky House in November. Here in Louisville, there are a couple of hotly contested races for Louisville Metro Council. We check in with WFPL Political Editor Phillip M. Bailey and Kentucky Public Radio Frankfort bureau chief Jonathan Meador.Election Preview; Hemp-Gate; Preakness Preview; JCPS News: Byline 5/16/14 by Byline on WFPL14:00 - Jonathan Meador summarizes the numerous recent developments in the state agriculture department's efforts to get federal authorities to release hemp seeds meant for research.16:40 - The 139th Preakness Stakes is tomorrow at Pimilico Race Course in Baltimore. The Courier-Journal’s Jennie Rees joins us to talk about California Chrome and the other horses in the second leg of racing’s triple crown.24:20 - For the first time in school district history, a Jefferson County public school has adopted a nondiscrimination policy withspecific protections for transgender students. It happened this week at Atherton High School, where officials have been responding to complaints about a male-bodied transgender student using a girl’s restroom. We discuss the student gender identity issue at Atherton and in Jefferson County Public Schools with WFPL’s Jake Ryan29:00 - The announcement came out earlier this week from JCPS that Myers Middle School will be repurposed starting next year. WFPL's Joseph Lord and Jake Ryan explain what is known at this point.33:00 - Gabriel Walker, of Maysville Kentucky, is being followed periodically this year by public radio program Studio 360, as part of its "Creative Resolutions" series. He's attempting to fulfill a dream by transitioning from his day-job as sound designer and teacher, to being a working and performing musician. He has relocated to Louisville to work closely with songwriting partner, Jenrose Fitzgerald. We hear his latest audio diary, from May 9th.37:35 - In our arts segment, WFPL's Erin Keane talks with Claire DiVizio, artistic director of Thompson Street Opera Company, Louisville's newest opera producer, which has a mission of showcasing contemporary works.