On Tuesday's show: The Houston Chronicle reported last week that Texas Attorney General Ken Paxton is suing immigrant rights organization FIEL Houston, seeking to shut it down for violating a ban on nonprofits participating or intervening in political campaigns. His reported basis? Social media posts from the group that speak negatively about Gov. Greg Abbott and former President Donald Trump. We learn more what happened and about the legal challenge.

Also this hour: With a new school year under way, how can Houstonians with school-aged children protect themselves and their kids from a wide array of viruses that tend to spread each fall? On the one hand, vaccination exemptions have been rising for years. On the other, school enrollment is down, so maybe that means fewer sick kids at school, anyway. We discuss and consider whether Texas lawmakers may revisit vaccine exemptions next legislative session.

Then, Houston-area emergency room doctor Cedric Dark is proposing a public health approach to gun violence in his new book, Under the Gun: An ER Doctor's Cure for America's Gun Epidemic.

And our summer series visiting area museums and attractions continues with a visit to Children’s Museum Houston.