Hillary Rodham Clinton’s nearly 40 percentage point win in Tuesday’s West Virginia primary doesn’t seem to have resulted in any shift at all among Democratic voters’ preferences. In Gallup’s national daily tracking poll, Democrats chose Barack Obama over Clinton by six percentage points (50-44), a gap that has stayed steady since before the primary.

Clinton does have a slim head-to-head lead over McCain, leading him 48 to 45 percent. Obama is tied with John McCain at 45 percent when voters are asked about that November general election match-up.

The Democratic nomination results are based on data from May 12-14, and the margin of error is ‘3 percentage points. The general election results are based on data from May 10-14. For results based on this sample of 4,372 registered voters, the maximum margin of sampling error is ‘2 percentage points.