Members of the House Intelligence Committee are actively trying to obtain an underlying document that would show if the FBI had a human source inside President Donald Trump's 2016 campaign, Rep. Ron DeSantis, R-Fla., said Monday.

"The reason why a lot of us were suspicious, is that Glenn Simpson, at one point, the head of Fusion GPS, testified there was a human source inside the Trump campaign, based on his conversations with Christopher Steele," DeSantis told Fox News' "Fox & Friends," while commenting on a report from The Wall Street Journal last week that about the FBI and the campaign.

"It suggests that Steele, as a British agent, may have been working with somebody who the FBI was also working with, so we just need to get that information, yes or no," DeSantis said.

DeSantis said he might even know the person involved, "just based on what I have learned, not even classified."

However, the committee "doesn't even need to know the name," he added. "We just need to know did they, in fact, target Trump's campaign. It's a very crucial fact to know, to see how this whole thing started."

DeSantis said his understanding is House Intelligence Committee Chairman Devin Nunes, R-Calif., and Senate Oversight and Government Committee Chairman Trey Gowdy, R-S.C., both were involved in discussions with the Justice Department, and there were concerns raised, but he does not think Nunes' questions were fully answered.

"That's why we have been going back and forth on this stuff for months," DeSantis said. "They need to produce the information, otherwise, there needs to be some type of sanction, whether that's contempt of Congress or something else."

He said, though, he does not believe Attorney General Jeff Sessions is involved in the discussions, because of his initial recusal from the case.

"A lot of this is being done between chairman of the respective committees and Deputy Attorney General Rod Rosenstein," DeSantis said. "It's not actually reaching Sessions' desk."

DeSantis is in Jerusalem for the opening of the U.S. embassy, and said he supports the move, as Jerusalem is the "capital of the Jewish people" and has been for thousands of years.

"It's the capital of the modern state of Israel as well," DeSantis said. "There is always pretext people can use in the Middle East to try to create different types of uprisings. I'm not sure that's going to happen today. We will hope for the best. But, at the end of the day, the president made a bold and historic decision and this is really an historic day."

He said he noted further countries are planning to open their own embassies in Jerusalem, including Guatemala and Paraguay, and he believes such countries are showing a "lot of courage."