[Conservative12345]

OK, in order to get Obama 47%, Romney 45%, and based on the % of votes for each one among democrats, Republicans, and Independents my calculations show that in this poll there is 39% democrats, 32% Republicans, and 29% Independents... That is a D+7...

Calculations details based on the Rasmussen internals that you posted:

% Obama = (84*39 + 9*32 + 29*38)/100 = 46.66 %, round it to 47 %.

% Romney = (12*39 + 87*32 +29*45)/100 = 44.99 %, round it to 45%.

[Conservative12345]

Sorry I made a typo, 43% of independents voting for Romney according to your chart but not 45% but the calculations are not effected...