"Nebraska [Senator Machaela Cavanaugh] has vowed to filibuster every bill her state Senate colleagues introduce if they support a measure that would restrict certain transition-related health care for minors"

NBC a couple of weeks ago:

“If this Legislature collectively decides that legislating hate against children is our priority, then I am going to make it painful, painful for everyone,” Cavanaugh said during the meeting, which was recorded and shared by local news outlets. “If you want to inflict pain upon our children, I am going to inflict pain upon this body, and I have nothing but time, and I am going to use all of it.”

An update:

The 2023 legislative session so far has been marked by emotional social issues and painstakingly slow debates, because one senator is taking a stand on one bill by extending debate on every bill.

Her info.