The timeliness of a mandamus petitions is ordinarily determined by equitable principles rather than a set deadline. An exception to that general practice appeared in In re: Texas House Republican Caucus PAC, which presented a claim that certain Libertarian candidates had not paid the proper filing fees for the upcoming election. The Texas Supreme Court found that the applicable part of the Elections Code (relating to candidates selected by convention rather than application) set a hard deadline of August 21, making a mandamus petition filed after that date per se untimely. No. 20-0663 (Sept. 5, 2020) (per curiam) (Justices Hecht & Boyd, not participating).