Know how a Venn diagram works?
Think of a series of overlapping circles that represent different interests.
Where two circles overlap, there is shared interest. Putin and Trump, for instance, have an overlap on wanting to get their individual countries out from under the thumb of central banks and the Cabal Elitist dickheads. They also have their own circles where they're trying to empower their sovereign states, which do not overlap at all.
For an insight into how people's minds operate at high levels of Government, where individuals are subject to a high number of competing demands on their attention and loyalties, read the first few chapters of The Illuminatus Trilogy, paying particular attention to how they describe the heads of the American and Chinese states. It was written in the 60's, but ain't a damn thing change.