By Matthew Brown BILLINGS, Mont. (AP) — Lawyers for President Donald Trump’s administration say he has the authority to abolish national monuments meant to protect historical and archaeological sites across broad landscapes, including two in California created by his predecessor at the request of Native American tribes. A Justice Department legal opinion released Tuesday disavowed a 1938 determination that monuments created by previous presidents under the Antiquities Act can’t be revoked. The department said presidents can cancel monument designations if protections aren’t warranted. The finding comes as the Interior Department under Trump has been weighing changes to monuments across the nation as part of the administration’s push to expand U.S. energy production. The Republican in his first term reduced the size of two Bears Ears and Grand Staircase Escalante National…