Donald Trump’s favorable rating is now roughly equal to Hillary Clinton’s favorable rating. To the Trump skeptic, the result might be viewed as a short-lived post-convention bounce for the Republican nominee. To the Trump fan, it might be viewed as a sign of things to come as the summer turns to fall. History suggests that it really could be either: Sometimes how voters view a candidate immediately after the conventions sticks — sometimes it doesn’t. CONT.
Harry Enten, FiveThirtyEight