Generation Opportunity, a nonprofit advocacy group geared toward young adults, is attacking Sen. Mary Landrieu (D-La.) on economic issues in a wonderful new ad (hat-tip, Instapundit)

The ad, shared first with The Hill, shows a young woman pushing a Landrieu look-a-like around a grocery store in a shopping cart. The politician greedily grabs items off the shelves, munching cookies and hoarding goods as the young woman admonishes, “I told you, we can’t afford that!”

“Washington politicians, like Sen. Mary Landrieu, have a spending problem. They’re wasting money they don’t have, and sticking our generation with the bill,” a narrator says in the ad.

When a cashier finally rings up all of the groceries, the sum comes out to $800,000 — an 18-year-old’s share of the national debt, per a Budget Committee analysis — and the Landrieu stand-in dismisses it: “She’s got it.”

“No,” the young woman says, “pay for it yourself.”

The narrator then urges viewers to “tell Mary Landrieu that’s our money — stop wasting it.”

The ad is backed by a $450,000 TV buy and at least $100,000 online.

It’s the same message as the group’s first ad this cycle, hitting Sen. Kay Hagan (D-N.C.) on government spending and the national debt.

Both are considered two of Democrats’ most vulnerable incumbents, and seen as necessary to the GOP’s efforts to pick up the six seats the party needs to regain the majority.