“Trump made this politically feasible. He introduced the “it’s a loan” gambit, supported Johnson as Speaker, and then emphasized that Ukrainian Survival and Strength is important to the USA.”
I am disappointed in Trump’s lack of support for Ukraine overall, but your statement above is correct.
Trump hasn’t been supporting Biden policy. He was quite supportive of Ukraine and anti Putinist Russia as POTUS. In the end, of course, what matters is policy and not rhetoric.