WASHINGTON (AP) — President Donald Trump’s proposed 250-foot-tall (76-meter) memorial arch could disrupt the historical significance of dozens of sites near its planned location, according to an assessment by the National Park Service. The proposed arch is one of several projects the Republican president is pursuing to leave his lasting imprint on Washington. The arch design, proposed by Trump, has already received early approval from the U.S. Commission of Fine Arts. The National Park Service assessment confirms what the plaintiffs have said the construction will do to the symbolic and solemn area, he added. “I think its very significant that the National Park Service itself understands that this is the effect that it’s going to have,” Sansone said.