The Trump administration wants to fence off parts of Pennsylvania Avenue outside of the White House, shutting down a historic space for political protests.

The Washington Post reports that the administration and Secret Service plan to put fences where Pennsylvania Avenue crosses 15th and 17th Streets NW, allowing them to close pedestrian access if they decide there are security risks.

Multiple presidential administrations have used temporary barriers on Pennsylvania Avenue, but the Secret Service’s suggestion to erect permanent fences there has faced pushback as a clear attempt to restrict public access to the White House. The Trump administration is also planning to put up permanent fencing around Lafayette Square, a public park across from the White House and another historic protest space.