They were giving ex-military gear to police departments back in the 1990s under Bill Clinton.
Back when Trump was a Democrat Bill Clinton thought he could beat Republicans at being "tough on crime" and we are still paying the price:
How the 1994 Crime Bill Fed the Mass Incarceration Crisis
"The right way to view the (Clinton) 1994 crime bill is as the moment when both parties, at a national level, fully embraced the policies and political posturing that exacerbated the mass incarceration crisis we are trying to fix today.
"In 2019 and beyond, the best course of action for politicians who want to promote a smart justice-oriented vision for America is to disavow the 1994 crime bill and instead support a 50% cut in incarceration rates on the federal and state levels.
"Those running for federal office should pledge to use their power to close prisons once in office.
"That would be the best way to counteract the effects of the 1994 crime bill and prove that you don’t believe in the discredited tough-on-crime policies of the past."