Sen. Bill Cassidy (R-La.), a crucial swing vote in the Senate on Todd Blanche’s nomination, says he is still undecided about promoting Donald Trump’s former personal attorney to the role of Attorney General.

In an interview with SiriusXM’s The Briefing with Steve Scully, Cassidy expressed concerns about Blanche further weaponizing the Justice Department if he is confirmed for the job.

“I’ve not made a decision regarding Mr. Blanche. I’ve got to be convinced that he is an attorney general who just happens to have once been President Trump’s personal attorney, as opposed to President Trump’s personal attorney who is now the attorney general. I think there’s a big difference between the two,” Cassidy said.

“I am very concerned about so-called lawfare—people being prosecuted not for a valid reason beyond somebody in high office being angry at them. And so, I’m very concerned about that, and so that will factor into my decision-making,” he added.

Republican Sens. John Cornyn (R-TX) and Thom Tillis (R-NC) voted to advance Blanche out of the Judiciary Committee after securing an agreement that Trump’s so-called $1.8 billion slush fund to pay insurrectionists who assaulted police at the Capitol on Jan. 6 was dead.

But critics say the agreement reached has no language preventing the resurrection of the controversial fund under a different name or method. Cornyn said the DOJ has been “consistent” about its assertions that the fund is dead.

Republican Senator Susan Collins (ME) said ‌on Tuesday she would vote against Blanche.

“While I believe Mr. Blanche is a capable lawyer, the Department of Justice has become increasingly political,” Collins said in a statement. “Mr. Blanche has taken several actions that have further eroded the Department’s independence, and that is the basis for my vote to oppose his confirmation.”

With Republican Senator Mitch McConnell (KY) out indefinitely, Blanche ​can afford only one more Republican defection. Sen. Cassidy ​and Lisa Murkowski (R-Alaska), who previously expressed reservations about his ⁠nomination, are considered to be crucial swing votes.

Cassidy has become increasingly critical of Trump and his administration since he lost his re-election bid to a Trump-backed candidate in the Republican primary. But despite criticizing Trump, he regularly falls in line and votes with the rest of the party.