You are concerned about words again and not actions? The US has sent Ukraine billions of dollars in weapons and aid. That includes under Trump. So yes. Without the weapons that Trump has sent, Ukraine would be toast. In fact, that is a narrative supported by the Dems that the US must send weapons and aid or Ukraine will go under.
moot point. Trump shamed the Ukraine president in front of the whole world. Then cut off aide (March 2025).
He turned it back on again with help from EU. Then in July he did it again for a week
EU stepped in as a go-between so he would not do it again - Now US sells to EU.
Now did Russia invade Ukraine while Obama was president? Yes or no. Did Obama send Ukraine any weapons? Yes or no.
I understand the words - but your point is lost in the BS. Russia took Crimea in 2014 - There was no full scale war/invasion to do it.
US supplied limited aide at the time. Ukraine did not have a stable government. One President fled office - the next one resigned.
It was not the same Ukraine.

Obama put sanctions on Russia it was all he could do at the time. Trump was the one that cut off aide. EU had to step in.
Europe along with Ukraine's advanced drone technology is getting it done. I can't say the same for the American President.