True but you can say that about any poll at this stage of the game.
The real meaning is not the numbers, but the fact that trump has raised an issue that only the people want to talk about.
Neither party wants to get any where near the topic of illegal murderers, rapist, drug dealers etal because the American sleeping giant gets really pissed when it finally awakens and finds out that an illegal latino has stolen his bowl of porridge.
Can't argue with that. Trump has definitely found an issue that is generating publicity.