The problem does not lay with “showing id.” The problem is that the state of Texas would only accept certain forms of identification (i.e., gun licenses the majority of which are issued to Caucasians) and would not allow others, such as school/university id cards. Besides, photo id’s for people in far off rural areas are difficult to acquire, especially when many issuing offices are either closed or moved without notice. Many older folks can no longer drive and do not have valid driver’s licenses or passports, which makes it difficult for them to get to an issuing office. In addition, the cost of acceptable photo id’s has increased beyond the means of many who live in poverty (in my state, an “enhanced driver’s license” will become mandatory for boarding airplanes as of Jan 2018 and that cost me $108). Think beyond your universe/experience and/or read the text of the case. Voting procedures also differ from state to state: in my state, we vote by mail.