Rep. Mike McCaul (R-Texas) said that he was surprised at the lack of attendance Tuesday for a briefing on how to prevent Russian meddling in the upcoming midterm elections.

All 428 House members were invited to attend the classified briefing about election interference, but Rep. James Langevin (D-R.I.) said that only "a good 40 or so" attended the meeting.

Director of National Intelligence Dan Coats, FBI Director Christopher Wray and Department of Homeland Security Secretary Kirstjen Nielsen all spoke at the 8am ET meeting.

"The Democrats have made this such a big issue and have asked for this briefing for a long time," said McCaul, the chairman of the House Homeland Security Committee.

'What Doesn't Trump Understand?': Warner Says Foreign Interference in US Election Is Illegal

McCaul expressed amazement at the low attendance, especially by Democrats who have talked about the issue consistently since the U.S. intelligence community concluded in late 2016 that Russia actively tried to influence the election in favor of President Trump.

Nielsen has also said that China and Iran are also considered to be threats to election integrity.

Illinois Rep. Cheri Bustos (D), who attended the briefing, seemed to express disappointment at what was shared by the officials. 

"There was nothing that I couldn't have read in USA Today that was revealed," Bustos told Fox News reporter Peter Doocy.

"The fact that there was a low attendance, it doesn't matter," she said.

Doocy noted that the meeting was private, questioning whether those who skipped it will show up to the next public hearing on Russia when the cameras are rolling. 

Watch more from "Special Report with Bret Baier" above.

Pavlich on FBI's Trump 'Informant': 'Obama Spied on Reporters, Why Wouldn't He Spy on a Campaign?'

Judge Nap's $64,000 Question on FBI Informant Within the Trump Campaign

Dershowitz: 'A Special Counsel Is the Worst Way of Getting to the Truth'