Attention Candidates: Want The SEIU Endorsement?

If you're a Democrat, um, yes, you do.

You're in luck. Here's the golden key: spend a day working alongside an SEIU member.

That's what Andy Stern, the president of the country's largest labor union, will do over the next several days. Appropriately, he'll be in Iowa City, IA this weekend and in Concord, NH early next week.

Says Stern, in a statement: "If presidential candidates understand the struggles workers face each day, they will be better able to offer the solutions this country needs."

Reports that SEIU was preparing to endorse a presidential candidate early (or even two of them) aren't correct. And it's now clear that Stern won't recommend that his members endorse a candidate who refuses to spend a day in their shoes.

Who's first? [MARC AMBINDER]