AUSTIN, Texas — Rep. Tom DeLay appeared in court Friday for the first time since his indictment, but his arraignment on conspiracy and money laundering charges was delayed pending a hearing on his request for a new judge in the politically charged case.

DeLay, who has stepped aside at least for the time being as House majority leader, did not speak during the brief court session, and was not called on to make a plea. But at a news conference shortly afterward, he attacked the prosecutor in the case as politically motivated, and said, "I will absolutely be exonerated."

Inside the courtroom, Judge Bob Perkins told defense lawyer Dick DeGuerin that "the best way for me to handle" the request for a new judge would be to defer further proceedings.

That set the stage for a pointed exchange between the two men that seemed as much a campaign debate as a courtroom exchange.

In respectful tones, DeGuerin noted that Perkins had donated money to MoveOn.org, a liberal organization that he said has been "selling T-shirts with Mr. DeLay's mug shot on it."

"Let me just say I haven't ever seen that T-shirt, number one. Number two, I haven't bought it. Number three, the last time I contributed to MoveOn that I know of was prior to the November election last year, when they were primarily helping Sen. Kerry," responded the judge.

"All we want is a fair trial and a fair tribunal," DeGuerin told reporters outside the courthouse.

Prosecutor Ronnie Earle signaled he intends to contest the request for a new judge.

"What this means is if a judge had contributed to Crime Stoppers that judge could not hear a burglary case," Earle said. "Carried to its extreme, that is what I think this motion means and I think that's absurd."

"We don't live in a country where political party determines the measure of justice," Earle said, adding that he though DeLay could get a fair trial in the state's capital.

Administrative Judge B.B. Schraub will hold a hearing on whether Perkins should step aside. Schraub is based outside of Austin in the nearby town of Seguin, has been the administrative judge for the region since 1990 and is a Republican.

It was not clear how much the motion would lengthen proceedings in the case. The Texas congressman has said he wants a speedy trial.

DeLay appeared relaxed as he sat next to his wife, Christine, in the courtroom for what turned out to be a session of roughly four minutes. Earlier, he had entered the courthouse through a side door to avoid the cameras.