Before leaving office, former President Donald Trump also had a busy day, signing 143 pardons for associates and others accused or convicted of crimes.
Abbott didn't raise any accusations of malfeasance in the election but said election winners "are certified by designated governmental bodies, not by media outlets."
The highway skirmish came as Democrats close ground in a state that is polling competitively in the race for president. Recent polls indicate the presidential race in Texas between President Donald Trump and Joe Biden is tight, with some national prognosticators calling it a “toss-up.”
President Donald Trump on Thursday rejected plans for a virtual debate on Oct. 15 with Democratic rival Joe Biden, a format switch intended to reduce the risk of spreading COVID-19 in light of Trump's infection, and said he feels well enough to resume campaign rallies.