“We could really use a nurse in that seat to bring expertise and experience that’s currently missing.”

The Texas Tribune: Houston-area Democrats line up in competitive primary to succeed John Whitmire in the Senate

Cook, meanwhile, is leaning into her background as an emergency room nurse. Her debut ad shows her heading to work in scrubs and bracing for dealing with things like complicated pregnancies under Texas’ abortion ban.

“I always tell people that businessmen and lawyers are incredibly important — [but] they’re very well-represented at the Capitol,” Cook said in an interview. “We could really use a nurse in that seat to bring expertise and experience that’s currently missing.”