Trump couldn't care less about Europe - he'll see them framed in business terms as a "loss making partner"... firstly he'll insist on them raising their military expenditures to the goal of 2 % of GDP, which means de-funding social programs & welfare state issues, and shifting expenditures to the military, .. if they won't do that he'll insist that the US get paid for "services rendered", which now include protection against the Russians, and if he doesn't get that he'll cut his losses and run..

That's why Putin supports Trump