The lawyer who killed a federal judge’s son and seriously wounded her husband at their New Jersey home last summer also had been tracking Supreme Court Justice Sonia Sotomayor, the judge said in a television interview.

U.S. District Judge Esther Salas said FBI agents discovered the information in a locker belonging to the lawyer, Roy Den Hollander. “They found another gun, a Glock, more ammunition. But the most troubling thing they found was a manila folder with a workup on Justice Sonia Sotomayor,” Salas said in an interview with CBS News’ “60 Minutes.” The segment is scheduled for broadcast Sunday, but a portion of the interview aired Friday on “CBS This Morning.”

Both the Supreme Court and the FBI declined to comment Friday. “We do not discuss security as a matter of Court policy,” court spokeswoman Kathy Arberg said in an email.

Authorities have said Den Hollander, a men’s rights lawyer with a history of anti-feminist writings, posed as a FedEx delivery person and fatally shot 20-year-old Daniel Anderl and wounded his father, Mark Anderl, in July. Salas was in another part of the home at the time and was not injured.

Den Hollander, 72, was found dead of a self-inflicted gunshot wound the day after the ambush. Authorities believe he also shot and killed a fellow attorney in California in the days before the attack at Salas’ home.

The AP has previously reported that when Den Hollander was found dead he had a document with him with information about a dozen female judges from across the country, half of whom are Latina, including Salas.

Salas has been calling for more privacy and protections for judges, including scrubbing personal information from the internet, to deal with mounting cyberthreats. The U.S. Marshals Service, which protects about 2,700 federal judges, said there were 4,449 threats and inappropriate communications in 2019, up from 926 such incidents in 2015.

Legislation named for Salas’ son that would make it easier to shield judges’ personal information from the public failed to pass the Senate in December, but could be reintroduced this year.

A hearing on the Trump campaign’s federal lawsuit seeking to prevent Pennsylvania officials from certifying the vote results was set to begin Tuesday after a judge denied the campaign’s new lawyer’s request for a delay.

Rudy Giuliani, the former New York City mayor and the president’s personal attorney, entered the federal courthouse in Williamsport to cheers across the street from several dozen supporters of President Donald Trump.

U.S. District Judge Matthew Brann had told lawyers for Donald J. Trump for President Inc. and the counties and state election official it has sued that they must show up and “be prepared for argument and questioning” at the federal courthouse.

Giuliani filed Tuesday morning to represent Trump in the case. He has not entered an appearance in federal court since 1992, according to online court records. That was the year before he was elected mayor.

The Trump campaign wants to prevent certification of results that give President-elect Joe Biden the state’s 20 electoral votes, suing over election procedures that were not uniform across the state. Giuliani has promised a raft of lawsuits and to provide Trump with evidence of voter fraud in the drive to overturn the election result.

Pennsylvania Secretary of State Kathy Boockvar, a Democrat, has asked to have the lawsuit thrown out, calling its allegations in court filings “at best, garden-variety irregularities.”

Brann scheduled the hearing to discuss the campaign’s request for a temporary restraining order as well as the defendants’ request to have the case dismissed.

After Pittsburgh lawyers dropped out of representing Trump’s campaign on Friday, Philadelphia election lawyer Linda Kerns and two Texas lawyers also filed to withdraw Monday.

Camp Hill lawyer Mark Scaringi, a losing candidate in the 2012 Republican U.S. Senate primary, notified the judge he was stepping in but did not get the delay he sought.

The Associated Press has declared Biden the winner of the presidential contest, but Trump has refused to concede and is blocking Biden’s efforts toward a smoother transition of power. With Georgia the only uncalled state, Biden has collected at least 290 electoral votes ? just enough that overturning Pennsylvania’s result would not open an avenue to a second term for Trump.

Biden’s margin in Pennsylvania is now more than 73,000 votes.

There is no evidence of widespread fraud in the 2020 election, and experts say Trump’s various lawsuits have no chance of reversing the outcome in a single state, let alone the election. In fact, election officials from both political parties have stated publicly that the election went well, and international observers confirmed there were no serious irregularities.

The issues Trump’s campaign and its allies have pointed to are typical in every election: problems with signatures, secrecy envelopes and postal marks on mail-in ballots, as well as the potential for a small number of ballots miscast or lost.

President Donald Trump’s and Democratic rival Joe Biden’s campaigns are assembling armies of powerful lawyers for the possibility that the race for the White House is decided not at the ballot box but in court.

They have been engaging in a lawyer’s version of tabletop war games, churning out draft pleadings, briefs and memos to cover scenarios that read like the stuff of a law school hypothetical more than a real-life case in a democracy.

Attorneys for the Republicans and the Democrats are already clashing in courts across the U.S. over mailed-in ballot deadlines and other issues brought on by the coronavirus pandemic. And as Trump tries to sow doubt in the legitimacy of the Nov. 3 election, both sides have built massive legal operations readying for a bitterly disputed race that lands at the Supreme Court.

“We’ve been preparing for this for well over a year,” Republican National Committee Chief Counsel Justin Riemer told The Associated Press. “We’ve been working with the campaign on our strategy for recount preparation, for Election Day operations and our litigation strategy.”

On the Democratic side, the Biden campaign’s election protection program includes a special national litigation team involving hundreds of lawyers led by Walter Dellinger, acting solicitor general in the Clinton administration, and Donald Verrilli, a solicitor general under President Barack Obama, among others. Bob Bauer, a former White House counsel to Obama, and Biden campaign general counsel Dana Remus are focused on protecting the rights of voters, who have been enduring long lines at polling places around the country on the belief that the presidential election will be decided by their ballots.

Both sides are informed by the experience of the 2000 election, which was ultimately decided by the Supreme Court in Bush v. Gore. But this year, because Trump has pushed unsubstantiated claims about the potential for voter fraud with increased voting by mail, sowing doubt about the integrity of the result, lawyers are preparing for a return trip before the high court.