Republicans briefly brought the Democrat-led impeachment investigation to a halt Wednesday when around two dozen GOP House members stormed into a closed-door deposition with a Defense Department official. Democrats said the move compromised national security because some of the Republicans brought electronic devices into a secure room. The protest by Republican lawmakers captured national attention, drawing the focus away from the testimony of a top U.S. diplomat who told lawmakers just a day earlier that he was told President Donald Trump was withholding military aid from Ukraine unless the country's president pledged to investigate Democrats. The maneuver delayed a deposition with Laura Cooper, a senior Defense Department official who oversees Ukraine policy, until midafternoon. The interview began roughly five hours behind schedule, after a security check by Capitol officials, and ended after roughly four hours. As a series of diplomats have been interviewed in the impeachment probe, many Republicans have been silent on the president's conduct. But they have been outspoken about their disdain for Democrats and the impeachment process, saying it is unfair to them even though they have been in the room questioning witnesses and hearing the testimony. "The members have just had it, and they want to be able to see and represent their constituents and find out what's going on," said Ohio Rep. Jim Jordan, the top Republican on the House Oversight and Reform panel. That committee is one of three leading the investigation, and its members are allowed into the closed-door hearings. Lawmakers described a chaotic scene. Rep. Debbie Wasserman Schultz, D-Fla., said she had just walked into the room when the Republican lawmakers blew past Capitol police officers and Democratic staffers. The staff member who was checking identification at the entrance was "basically overcome" by the Republicans, she said. Read more: https://7ny.tv/2JfZNGo Check out more Eyewitness News - http://7ny.tv/2suJHTd NEW HERE? – Hi! We’re abc7NY, also known as Channel 7 on TV, home to Eyewitness News, New York’s Number 1 news. We hope you love us on YouTube as much as you do on television! OUR SOCIAL MEDIA – FACEBOOK: / abc7ny TWITTER: / abc7ny INSTAGRAM: / abc7ny NEWS TIPS: Online: http://abc7ny.com/submit-a-news-tip/2... Phone: 917-260-7700 Email: [email protected] #abc7NY #localnews #nyc