Pennsylvania's April 22 primary may well be the decisive one.

From The Wall Street Journal Online:

Both campaigns anticipate that Sen. Obama will prevail in the next clutch of primaries -- the Washington and Nebraska caucuses this weekend and Tuesday's contests in the D.C. beltway, where there are a lot of African Americans and wealthier Democrats -- while Sen. Clinton is expecting to make up for those losses next month in Ohio and Texas, where she can count on blue-collar Democrats and Latinos, respectively, Time magazine reports. As such, "the last big contest, Pennsylvania's April 22 primary, may well be the decisive one," Time writes.