This letter, written to the Texas Senate was shared, with permission,by Llano ISD Superintendent, Casey Callahan. Dear Texas Senate, It is unfortunate that you feel the need to vilify our Texas public schools because your top campaign contributions come from folks who are determined to see vouchers finally pass. Condemning our public schools and casting harsh accusations of widespread failure is not only disrespectful and counterproductive, it is just flat inaccurate.