As I read it PCA refers to “domestic” issues Dems will argue immigration is domestic Trump has framed it as a foreign invasion.
The Posse Comitatus Act is a United States federal law (18 U.S.C. § 1385, original at 20 Stat. 152) signed on June 18, 1878 by President Rutherford B. Hayes. The purpose of the act in concert with the Insurrection Act of 1807 is to limit the powers of the federal government in using federal military personnel to enforce domestic policies within the United States.
Who was President in 1997?
For example, in 1997 U.S. Marines were sent to support the U.S. Border Patrol in Texas along the Mexican
border during a period of escalating border violence and drug related activity.
In light of that, how was the use of the Army in response to the Bonus Marchers (Patton, MacArthur) justified?