It's possible that Polynesians discovered the Americas prior to discovering Rapa Nui (Easter Island), and those Polynesians had interbred with American natives prior to discovering and colonizing Rapa Nui.
But it's also possible that the Polynesians discovered and colonized Rapa Nui first, and then some of those Rapa Nui Polynesians (either the Rapa Nui discoverers themselves or their descendants) ventured to the Americas and perhaps a few even settled there or at least took Native American wives and bred with them, and their wives and/or offspring were eventually brought back to Rapa Nui.
There is a very small amount of that orange South American Native and green Central American Native genetic component found further west in French Polynesia. It could have been brought to French Polynesia prior to the European Age of Discovery, but it could have instead been brought during the European Age of Discovery or even in more recent modern times, but that the genetic coupling between Eastern Polynesians and Native Americans occurred in pre-colonial times.