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For more Bexar County and Texas runoff election results, click here.
At 10:30 p.m. with all counties reporting some results, Popp claimed 78.3 percent of the votes.
Popp will face Democrat Rebecca Bell-Meterau in the November general election. All results are unofficial until canvassed.
Popp was endorsed by all the Republicans on the state board and several statewide elected officials. She works as a speech language pathologist in Northside ISD.
Morrow was a controversial candidate and former chair of the Travis County GOP who was forced to give up his leadership position after he filed to run for president as a write-in candidate in the 2016 election. The candidate repeatedly said he hoped to use a position on the state board to imprison President Donald Trump.
In keeping with his controversial reputation, Morrow tweeted out an endorsement for Democrat Rebecca Bell-Meterau, saying Popp was another “GOP enabler” of President Donald Trump.
On Tuesday morning, SBOE Chair Keven Ellis tweeted, “THOSE IN SBOE DISTRICT 5, SAY NO TO ROBERT MORROW. YES I AM, YELLING!!!”
Prior to election results being made public, Morrow forecast that Popp would win the runoff and lose to Bell-Metereau in the general election.
Gov. Greg Abbott issued a statement Tuesday evening, congratulating Popp on her primary runoff victory.
“Congratulations to Lani Popp on securing this important victory on the path to the Texas State Board of Education,” Abbott said. “Lani is a trustworthy leader who has demonstrated a keen understanding and passion for public education throughout her career as an educator.”
Popp will face Bell-Metereau in the race to replace Ken Mercer, who served District 5 for the past 14 years. District 5 spans North Bexar County east to Travis County and includes several small cities such as Alamo Heights, Castle Hills, and Converse.