It takes someone to win by 10 to have a landslide. The New York Times is projecting his win by .. ahem ...

This is not a landslide. As we would say in Puerto Rico :
Barack limpió el piso con Clinton.

Screenshot of NY Times Wisconsin tallies

There's some interesting poll info from CBS via Marc Ambinder :

Info from our trusty pals at CBS News: this electorate is very white; only four in ten have a "college degree." They're "less affluent" than Dems in other states. The percentage of late deciders is declining: only 27% made up their minds within the last seven days.

-- Issue number one is, of course, the economy, followed by health care... adding the economy and health care brings you to nearly 70% of the electorate.
-- Change trumps experience, 52 to 24.
-- Very few first time voters -- only 17%.
-- 27% of the electorate were independent
-- Clinton was seen as the most unfair attacker;
-- Obama (55%) was seen as the candidate most like to improve relations with the res tof the world.
-- Clinton and Obama are seen as equally qualified to be commander in chief (50% and 48%), while

Obama draws 60% or more on the questions of who best can unite the country and beat the Republicans.

And just to hammer it in, let's read what CNN has to say about those voters :

But in early exit polls tonight, Obama held Clinton to a virtual tie among Wisconsin Democratic primary voters who said they have a union member in their household — 50 percent for Clinton to 49 percent for Obama — and actually edged her among women, 51 percent to 49 percent.

Clinton held a narrow advantage over Obama among Catholic poll respondents — who made up 43 percent of voters interviewed — 51 percent to 48 percent. She also held narrow leads among voters with only a high school education, people 60 or older and those making between $15,000-$30,000 a year.

But Obama kept those margins close and took easy wins among his traditional base of supporters.

Among voters 49 years old and younger he had a significant 64-39 percent advantage over Clinton. College-educated voters, who made up 72 percent of those polled, favored him 59 percent to 39 percent.

Obama had a slight edge among voters who called themselves Democrats — 50 percent to 49 percent — but overwhelmingly topped Clinton among the 27 percent of respondents who called themselves independents, taking 63 percent of their votes to Clinton's 36 percent.

This is what mandates are made of. Enough said.