Public Policy Polling (emphasis mine):
Thanks to a more unified party and the advantage among independents Republicans continue to lead the national generic legislative ballot, 47-42 this month.
92% of Republicans are committed to supporting their party this fall while just 86% of Democrats are. For all the unhappiness many GOP voters may express with their party they are still pretty universally planning to vote for it this fall. Independents voters are leaning toward the GOP by a 37-31 spread.
The Republican advantage has been built largely on a massive shift with white voters. In the 2006 midterm whites went for the GOP by just a 51-47 margin. Now they’re leaning toward the Republicans 57-32. 84% of blacks and 65% of Hispanics still plan to vote Democratic, relatively comparable to the last midterm when undecideds are factored in.
I can sense the thrill going up Chris Matthews’s leg as I type.