During his first term as president, Donald Trump tested the limits of how he could use the military to achieve policy goals. If given a second term, the Republican and his allies are preparing to go much further, reimagining the military as an all-powerful tool to deploy on U.S. soil.

He has pledged to recall thousands of American troops from overseas and station them at the U.S. border with Mexico. He has explored using troops for domestic policy priorities such as deportations and confronting civil unrest. He has talked of weeding out military officers who are ideologically opposed to him.

“They are promising to use the military to do mass raids of American families at a scale that harkens back to some of the worst things our country has done,” said Todd Schulte, president of FWD.us, an immigration advocacy organization.