The lawsuit filed Tuesday afternoon against Harris County Clerk Stan Stanart's office and the commissioners' court states voters were left to wait in an hour-long line after polls were unlawfully delayed.
The suit also states the county failed to provide functioning equipment at a number of polling places on Election Day.
Nine polling places were permitted to remain open until 8 p.m., including:
Iglesia Trinidad
11602 Bobcat Rd., Houston 77064
Metcalf Elementary
6100 Queenston, Houston 77084
Evelyn Thompson Elementary
220 Case Grande Dr., Houston 77060
Hampton Inn Katy Fwy
5820 Katy Fwy at Washington Ave., Houston 77007
Fiesta Mart
8130 Kirby Dr., Houston 77054
John Marshall Middle School
1115 Noble St., Houston 77009
HOAPV Community Building
1810 Bluebonnet Place Cir., Houston 77019
Lone Star College Cypress Center
19710 Clay Rd., Katy 77449
Houston Community College Alief Center
13803 Bissonnet, Houston 77083