Trumps is making NATO stronger than it had been in years. Trump admires any strong leader, doesn't mean they are best friends but showing mutual respect doesn't weaken either one. After the way some of our allies have been acting over the last eight years a little badmouthing was justified. I can't count the number of times I heard Democrats talking about how sanctions don't work. 
I would think Russia would favor the individual responsible in handing over 1/6 of the US's uranium over to Russians.