House Intelligence Committee Chairman Devin Nunes, R-Calif., has scored a victory in his effort to uncover information about the FBI’s use of an informant who sought out suspicious ties between President Trump’s 2016 campaign and the Russians.

While classified documents about that informant — Stefan Halper, an American academic — had originally been shared only with members of an exclusive group of congressional leaders, Nunes had pushed for expanded access to all members of the House and Senate Intelligence panels.