For context, the Conservative Treehouse article is referencing this Politico article, and in particular the following section:
Much of that time was spent addressing numerous queries from Judge Neomi Rao, a Trump appointee, about whether U.S. District Court Chief Judge Beryl Howell had the authority back in October to order the Justice Department to turn over the grand jury material to the House Judiciary Committee.
Rao seemed to accept that Howell could release the court’s veil of secrecy over the records, but she also suggested that forcing the executive branch to fork them over to Congress raised thornier questions.
That prompted Letter, the House counsel, to repeatedly raise the specter of Congress returning to use of force to enforce its subpoenas — a practice not attempted for nearly a century. But as the House lawyer spoke of the potential for such confrontations leading to violence, it appeared he was highlighting the dangers of such an approach rather than seriously suggesting returning to the coercive methods employed until the 1930s.
“I guess what we would do is use the main remedy the House has had from the beginning, we’ll send the sergeant-at-arms over to the Justice Department. I cannot imagine anyone is going to interfere with him doing his duty as an officer of the House,” Letter said.
When pressed by Rao about what would happen if the Justice Department refused to comply, the House counsel added: “We can send the sergeant-at-arms and he can have a gun battle.”
Letter quickly said that it was “obvious” how such an effort could lead to chaos and why that practice was abandoned.
“Instead, we go to court,” said Letter, who in early 2018 ended a four-decade career as a senior Justice Department attorney.
https://www.politico.com/news/2020/01/03/impeachment-justice-department-democrats-trump-court-093088