I think that the reference is to 23,000 nursing vacancies statewide in Texas. (The article is paywalled.)

Meanwhile, the Texas GOP is begging nurses to come help bail out the state from its overflow of patients, and can’t figure out why nurses nationwide reply “live in the mess your ignorance created” and ignore the appeals to fill 23,000 empty slots. https://t.co/Hpya7BU2mp

— Kurt Eichenwald (@kurteichenwald) January 9, 2022