Trump supported the implementation of the Minsk Agreements - that was his strategy for ending the conflict bewteen Russia and the Ukraine.
The Minsk Agreements were ignored by Germany, France and the Ukraine. When they didn't honor the Minsk Agreements, Putin decided he had no other choice than to invade.
Recently, Angela Merkel (Germany) admitted publicly that they never intended to honor the agreements, they just used the Minsk Agreements to buy time to strengthen the Ukraine. Putin noted that this was such a marked violation of trust that it harmed international relations going forward, and he said that perhaps he should have invaded Ukraine earlier if he'd known that the Minsk Agreements were just a stalling technique.
The Minsk Agreement delay allowed NATO to build up a 600,000 troop army (along with weapons).
Trump administration taps former NATO envoy for Ukraine role
"WASHINGTON (AP) — Moving closer to taking a more direct role in European-led efforts to end the conflict in Ukraine, the Trump administration on Friday appointed a former U.S. ambassador to NATO as special envoy for resolving the crisis.
Secretary of State Rex Tillerson, who will visit Kiev this weekend, named Kurt Volker as special representative for Ukraine negotiations. In that job, Volker will oversee U.S. efforts to press Ukraine and Russia to fully comply with the Minsk Agreement, which lays out a roadmap for reducing tensions in Ukraine’s east. The accord was worked out two years ago in the capital of Belarus by the leaders of France, Germany, Ukraine and Russia but has yet to be implemented."
“ When they didn’t honor the Minsk Agreements, Putin decided he had no other choice than to invade.”
It’s always funny when people pretend to know the motivations of Putin.