National polling a year or more ahead of a national election is pointless, as much too often, it proves to be totally out of line with reality.
Also, elections are not decided nationally, but state by state, so therefore, the hysteria over the close polls on the Presidency showing a tight race should not cause people to panic.
At this point in many past election cycles, we were told Barack Obama was in bad shape in 2011; that Hillary Clinton was the guaranteed nominee in 2007; that Rudy Giuliani was the favored Republican candidate in 2007; that Howard Dean was favored in 2003; and on and on and on!
A year and more is an eternity, and the Democrats and Joe Biden still would be the favorite moving forward!