Take a look at the handwritten campaign finance reports of Maureen Shelton, the Wichita County TX District Attorney who declined to prosecute Sharen Wilson, the Tarrant County District Attorney who was accused of improperly soliciting campaign contributions from the District Attorney's office staff.
Do any of the people on her donor list have jobs? If so, she did not list them on the campaign finance reports--those spaces were left blank. Secondly, there is no filer ID on any of the forms Third, take a look at the payment to the Citibank credit card on 12/5/17 (01/16/18 report)for $1800.00. Where are the itemized campaign expenses to justify this?
Without a doubt, the most important and most relevant link to the Crystal Mason case is the bottom one highlighted in red. It is Maureen Shelton's subscription to the Texas Code of Fair Campaign Fair Practices pursuant section 258 of Texas Election Code. It is a voluntary oath in which the campaigner solemnly swears that they will not engage in any activity which discourages citizens from voting and they will report any peers that engage in such activity.
Click on the illustration below to view the full report.