It seems (some) pollsters have no clue what they are doing this year.
Both WaPo and TIPP were pretty good in 2008 and 2012, but now they are 14 points apart ...
WaPo's +3 Obama was close to Obama's margin of 3.9.
TIPP had +1 Obama, a 2.9 Republican bias.
If trend is anything, WaPo is more likely to be correct.
But in 2008, TIPP was O+8 and WaPo was O+9, which balances things out.
The thing is more that they are 14% apart right now, when they showed relatively similar results the last 2 elections ...