From Reuters: "In recent weeks, thousands of Wal-Mart managers and department heads have been summoned to mandatory meetings at which the retailer stresses the downside for workers if store workers unionize, the paper said… The Wal-Mart human-resources managers who have run the meetings didn't tell those attending how to vote in the November elections, but made it clear that voting for the presumptive Democratic presidential nominee, Sen. Barack Obama, would be tantamount to inviting unions in."