HOUSTON — The chancellor of the University of Texas System has decided to authorize an external investigation into political influence on the admissions process at the University of Texas at Austin, reversing his decision last month not to pursue the matter.

Chancellor Francisco Cigarroa said “ongoing questions” and “additional input” since that decision led him to change his mind. Watchdog.org, of course, has been the source of that input, detailing the underwhelming performance of dozens of politically connected students at UT Law, as well as their abysmal scores on the Law School Admissions Test.

Cigarroa announced the decision to the Texas Tribune late Friday.