Depends on your PoV.
From my [summed up] European's PoV Obama was very right wing and Trump is veryyy right wing. From an American's PoV that PoV lacks nuance. So I generally refrain from using those simplistic terms when potentially talking to Americans; gets discussion nowhere.
Here's the data on political groups (coalitions) in the EP. [1] Claiming these are "left wing" is.. well.. clearly US centric PoV, but also overly simplistic and bifurcating. Calling Europe left-wing, knowing that Europeans are going to read it and reply is also fuel for a flamewar. Hence why I linked some data to put things in perspective.
[1] https://en.wikipedia.org/wiki/Political_groups_of_the_Europe...