WASHINGTON (AP) — A federal district judge said Tuesday that paint tests on a 19th-century historic landmark building next to the White House can go ahead, advancing President Donald Trump's plans to add a new coat of white paint to the Eisenhower Executive Office Building, for now.

Trump has suggested the massive building be painted as part of his push to remake and beautify the nation’s capital. Planners said the paint job would cost at least $7.5 million.

The proposal to paint the building has alarmed preservationists, architects, historians and others who argue that granite is not meant to be painted and that paint would trap moisture and degrade the stone.

U.S. District Judge Dabney L. Friedrich said plaintiffs in an ongoing case had not shown that minimal tests planned for the historic building would cause irreparable harm if those tests go ahead.

The plaintiffs, which include cultural preservationist groups, had sought a restraining order and a temporary injunction to stop the Trump administration from conducting tests and other preparatory work.

At issue was whether that work would get ahead of a larger question before the court over whether the General Services Administration could delegate its authority for such a project to the Executive Office.

“The plaintiffs’ motion rises and falls on irreparable harm,” Friedrich said from the bench. The test areas would include about 8 square feet of the building's massive exterior and several panels that can’t be seen by the public, she said.

Friedrich said that while she was allowing that test to move ahead, she would not hesitate to step in and rule if the administration moved beyond the limited testing. She asked the parties to provide a status report by next Tuesday and ordered regular reports following that.

Gregory Werkheiser, a lawyer with Cultural Heritage Partners and one of the plaintiffs, said that while he and others challenging the painting plan were disappointed, “the reasons we brought this case are untouched by today’s decision.”

The larger issue, he said, is whether “the president has taken power illegally from the GSA and put it in his office in terms of this project and the implications of that. If that holds true for historic properties around the country, that could be devastating.”