How might the Trump administration change U.S. support for Ukraine and European defense?

The Trump administration appears to be pursuing a transactional approach with Ukraine, linking continued support to American access to Ukrainian minerals and resources. Officials have indicated that the U.S. role in supporting Ukraine will be reduced, with the expectation that Europe will need to fill the gap and take more responsibility for its own defense. This signals a strategic shift where America wants to transfer the burden of European security to Europeans themselves. As one analyst notes, Europe is essentially looking at a 'post-American future for maintaining its security,' suggesting significant changes to the transatlantic security relationship that has dominated since World War II.