Prior to becoming a judge, he served as general counsel to governor Greg Abbott,[3][5] where he advised the governor on a range of issues under federal and state law and managed litigation in which the Governor is an interested party.[6]
He has been suggested as a potential Supreme Court nominee in Donald Trump's second term.[9]
Federal judicial service
On February 12, 2018, President Donald Trump announced his intent to nominate Oldham to an undetermined seat on the United States Court of Appeals for the Fifth Circuit. On February 15, 2018, his nomination was sent to the Senate. President Trump nominated Oldham to the seat vacated by Judge Edward C. Prado, who became the United States Ambassador to Argentina.[3] On April 25, 2018, a hearing on his nomination was held before the Senate Judiciary Committee.[10] On May 24, 2018, his nomination was reported out of committee by an 11–10 vote.[11] On July 17, 2018, the United States Senate invoked cloture on his nomination by a 50–49 vote.[12] On July 18, 2018, his nomination was confirmed by a 50–49 vote.[13] He received his judicial commission on July 19, 2018.[14]
Notable opinions
In September 2022, Oldham wrote for a unanimous three-judge panel of the Fifth Circuit in NetChoice v. Paxton, which concerned the constitutionality of Texas House Bill 20. In his opinion, he reversed the judgement of the United States District Court for the Western District of Texas, holding that the Court "reject[s] the idea that corporations have a freewheeling First Amendment right to censor what people say."[15] NetChoice appealed to the United States Supreme Court, which granted certiorari and reversed Oldham's decision in Moody v. NetChoice, LLC.
In May 2024, Oldham wrote an opinion for a unanimous three-judge panel of the Fifth Circuit in Hughes v. Garcia, which affirmed the denial of qualified immunity to two Houston police officers who arrested a Good Samaritan for impersonating a police officer after he performed a citizen's arrest on a drunk driver who crashed in front of him while on a highway.[16]
In October 2024, Oldham wrote the opinion of the Fifth Circuit in Republican National Committee v. Wetzel. This was a case regarding Mississippi's laws governing the process by which absentee ballots are counted. Mississippi state statute allows absentee ballots that are received up to five days after Election Day to be counted. Oldham wrote for a unanimous three-judge panel that "Text, precedent, and historical practice confirm this “day for the election” is the day by which ballots must be both cast by voters and received by state officials," and thus the state statute is preempted by federal law. As a result, all mail-in absentee ballots in elections in Mississippi must be received by Election Day in order to be counted.[17]