Roger Marshall, the Republican senator from Kansas, has paid a six-year-old bakery debt of $678.75 — doubled to $1,300, he says — but only after the baker's Facebook post went viral and his re-election race tightened from lean-Republican to toss-up. The timeline tells you everything about the incentive structure: the invoice sat unpaid through years of collection attempts, and the check arrived within days of internet virality. Holly Thomas, owner of Holly's Sweet Treats in Hutchinson, Kansas, supplied cookies and treats for Marshall's 2020 primary election watch party. She spent nearly a year calling and emailing for payment, never receiving a response. The $678.75 was owed during the worst of the Covid-19 pandemic, when — as Thomas put it — "every single dollar mattered" for small businesses fighting to survive. Thomas's October 8 Facebook post framing the debt as a character issue, not a partisan one, achieved the kind of virality that campaign consultants dread. Her line — "This isn't about political parties or policy disagreements. It's about my personal experience as a small business owner" — was devastatingly effective precisely because it was personal and small-scale, not ideological. Marshall's response followed the standard playbook for caught-out politicians: claim ignorance ("We have absolutely no idea how this happened"), overcorrect with generosity ("we have repaid the bill … double"), and move fast. X users promptly applied a community note linking to Thomas's original post. Others pointed out that $678.75 doubled is $1,357.50, not $1,300, and that six years of 18% simple interest would exceed $1,400. The political context sharpens the extraction story. Cook Political Report recently moved Marshall's race from lean-Republican to toss-up, with Democrat Adam Hamilton running a viable challenge in a state that hasn't elected a Democratic senator since 1932. The New York Times reported in September that Marshall's OB-GYN practice had sued hundreds of patients over unpaid medical bills, some as low as $101 — establishing a pattern where Marshall's operations pursue debts aggressively from individuals while ignoring their own obligations to small vendors. Thomas acknowledged the payment Saturday: "Better later than never, right? Six years later, I guess we can finally mark that invoice PAID!" The graciousness only deepened the contrast. A small-business owner extended more courtesy in collecting a debt than the senator's office showed in six years of silence. The mechanism here is familiar: a powerful actor externalizes costs onto a less powerful one, relies on the asymmetry of attention and leverage to avoid consequences, and reverses course only when the reputational cost exceeds the financial one. The $678.75 was never significant to a US senator. It was significant to a baker during a pandemic. That gap — who can afford to ignore obligations and who cannot — is the entire story.