In progress. U.S. Senate closes the curtain on transparency

The restriction may or may not have been dropped by the time you read this.  

Breaking: Reporters Now Banned From Filming Senators in Capitol Building Hallways.  (The New Civil Rights Movement, 6/13/2017)

NBC News Capitol Hill Correspondent Kasie Hunt, who daily appears on MSNBC, often from the Capitol building, broke the news via Twitter:NBC News Capitol Hill Correspondent Kasie Hunt, who daily appears on MSNBC, often from the Capitol building, broke the news via Twitter. 

She notes not only does it break years of precedence, but reporters must obtain permission from both the Senator and the Senate Rules Committee to do their reporting. Journalists have strong First Amendment protections, and this new move, presumably by the GOP, clearly violates them.