Donald Trump Set to Receive 2nd Classified Briefing Friday

The GOP nominee is scheduled to be briefed again at FBI office in New York City.

It’s unclear whether the same advisers will be attending Friday’s planned briefing with Trump.

Because of the sensitivity of the information discussed during briefings of presidential candidates, the sessions must take place in locations with secure rooms, known as sensitive compartmented information facilities. The FBI's office in New York City has such rooms.

The FBI, however, will have no role in the briefing beyond playing host, as ABC News was previously told.

Many of his critics, including top Democratic senators, have questioned whether he is fit to receive classified information, citing controversial statements he has made on the campaign trail.

Clinton’s session was held Saturday at the FBI’s office in White Plains, New York, close to her Chappaqua home. It lasted more than two hours, and Clinton attended it alone, a campaign aide said.

Clapper recently said there is no concern within the U.S. intelligence community over providing classified information to either of the presidential candidates, insisting, "It's not up to the administration and certainly not up to me personally to decide on the suitability of a presidential candidate."

"The American electorate is in the process of deciding the suitability of these two candidates to serve as commander in chief, and they will make that decision, to pick someone who will be cleared for everything," Clapper said in July at the annual Aspen Security Forum in Colorado.

Each of the campaigns decides the location for the candidates’ classified briefings, according to Clapper.

The briefings resemble the annual Worldwide Threat Assessment issued by the intelligence community, which releases an unclassified version each year. While some top-secret information could be discussed, the briefings will not include the nation's most sensitive secrets, particularly information on sources, methods and operations.

During an interview with Fox News that aired hours after Trump’s first briefing on Aug. 17, the Republican nominee was asked whether he trusts U.S. intelligence.

"Not so much from the people that have been doing it for our country. Look what's happened over the last 10 years. Look what's happened over the years. It's been catastrophic,” Trump said. "I won't use some of the people that are sort of your standards, just use them, use them, use them. Very easy to use them. But I won't use them because they've made such bad decisions.”

ABC News' Josh Haskell, Liz Kreutz, Veronica Stracqualursi, Justin Fishel, Alex Mallin and Devin Dwyer contributed to this report.