Blizzard of Florida polls provide constant look at presidential race. Here’s how to decipher and when to ignore them.

Public opinion polls are multiplying, both nationally and in Florida, like an invasive species taking over the Everglades. They’re not only difficult to escape, but they’re difficult to decipher. They provide fuel for frenzied chatter on cable TV and storms of 280-character analysis on Twitter. But do they mean anything?