By any means necessary clause

Sec. 5. Operational Actions to Repel the Invasion. The Secretary of Homeland Security, in coordination with the Secretary of State and the Attorney General, shall take all appropriate action to repel, repatriate, or remove any alien engaged in the invasion across the southern border of the United States on or after the date of this order, whether as an exercise of the suspension power in section 212(f) and 215(a) of the INA, 8 U.S.C. 1182(f) and 1185(a), or as an exercise of my delegated authority under the Constitution of the United States, until I issue a finding that the invasion at the southern border has ceased.