Americans are split over the issue of gender identity, but what does science say? And if sex change is impossible, why would we tell young people to proceed with a process they may later regret? Also, CNN is featuring debates between two liberal lawyers -- Alan Dershowitz who does not support impeachment, and Jeffrey Toobin whose network is totally behind it; and columnist Bill Kidd says Texas is no longer the "friendship" state since the governor doesn't want to take unlimited numbers of refugees.