The Election Day tracking polls still show a statistical dead heat and Romney's white share at 56%-59%, at the high end of the mediocre post-Reagan range. Remember, George W. Bush won with 58% of white votes in 2004; John McCain lost with 55% in 2008. (More comparisons here). But as immigration (which both supported) is slowly tipping the electorate, this may no longer be enough.
Romney's white share (on Page 86!!): 56%, for an eighteen-point lead over Obama.
Platinum Subscribers to Rasmussen can view the crosstabs. Romney's white share: still 58%, so his lead over Obama among whites remains 18 points.
Very unusually, the IBD/TIPP commentary mentions the white share—because Obama has reached 40% for the first time. IBD/TIPP describes this as "a critical threshold he had to hit in order to make a win possible."
This is an odd remark, given Obama's vanishing overall lead—and the fact that Romney's white share has also increased to 59%, for a nineteen-point lead, both among his better performances.