AUSTIN, Texas — AUSTIN, Texas (AP) — Texas Attorney General Ken Paxton is gearing up for a potential U.S. Senate run while no longer shadowed by a federal corruption investigation that hung over his rising profile in the Republican Party.

That durability would be tested against Republican Sen. John Cornyn should Paxton embark on what would likely be one of the country’s most contentious 2026 primary battles.

Paxton, a close ally of President Donald Trump, has hinted at challenging Cornyn for more than a year but has not said when he will make a decision.

In the final weeks of the Biden administration, the Justice Department decided not to pursue its investigation into Paxton over bribery allegations, according to two people familiar with the matter who spoke to The Associated Press on the condition of anonymity to discuss internal deliberations.

Though the date of the decision was not immediately clear, it was made in the final weeks of the President Joe Biden’s presidency, one of the people said.

The accusations were arguably the most serious of multiple legal troubles Paxton has faced since becoming attorney general in 2015, including felony securities fraud charges that hovered over him for nearly a decade before he agreed to pay nearly $300,000 in restitution fees. The attorney general also faced an investigation by the Texas State Bar for his efforts to overturn the 2020 election results.

Paxton characterized the investigation as a “bogus witch hunt” in a social media post on X responding to the news Thursday. He also tacked on a fresh barb toward Cornyn.

“Care to comment now, John?” Paxton posted.

Paxton declined an interview request through a spokesperson Thursday.

Spokespeople for Cornyn did not immediately respond to phone and email requests seeking comment.

The quiet dismissal underscores Paxton’s political resiliency and ascendency among his party’s hard-right in recent years while also potentially giving his opponents less fodder for political attacks.

“There are no more clouds over him,” said Bill Miller, a longtime Texas lobbyist and friend of Paxton.

Paxton has targeted Cornyn since the senator became one of few prominent Republicans to criticize him. Cornyn, who helped push a bipartisan gun control bill after the 2022 mass shooting at an Uvalde elementary school, also previously came under criticism from conservative activists who have driven the party’s agenda farther to the right.

Cornyn, who also served as Texas attorney general, has served in the Senate since 2002 and is a popular member of the GOP conference. But Cornyn lost to South Dakota Sen. John Thune in a close bid to become Senate majority leader. If Paxton enters the race, it will likely be the senator’s most competitive primary campaign to date.

In 2020, eight of Paxton’s closest aides accused him of using his office to benefit a Texas real estate developer who employed a woman Paxton was having an extramarital affair with. He was impeached and acquitted in the Texas Senate in 2023.

Nate Paul, the real estate developer, pleaded guilty in January to federal charges for lying to banks to receive millions of dollars in loans.

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Associated Press reporters Alanna Durkin Richer and Eric Tucker contributed to this report from Washington, D.C. Lathan is a corps member for the Associated Press/Report for America Statehouse News Initiative. Report for America is a nonprofit national service program that places journalists in local newsrooms to report on undercovered issues.

MOSCOW — A Russian-born U.S. citizen already imprisoned in Russia on a bribery conviction has been handed a second 15-year jail term for espionage, Russian news agencies reported Tuesday.

A Moscow court brought espionage charges against Gene Spector in August 2023, although details surrounding the case were not made public.

Spector, formerly an executive at a medical equipment company in Russia, was previously sentenced to 3.5 years in prison in September 2022 for enabling bribes to an aide of former Deputy Prime Minister Arkady Dvorkovich. The aide, Anastasia Alekseyeva, was sentenced to 12 years in April for taking bribes of two expensive overseas vacation trips.

Dvorkovich was a deputy prime minister under Dmitry Medvedev in 2012-2018. He is currently head of the international chess federation FIDE.