# Bid Protest A **bid protest** is a formal challenge to a federal procurement by an "interested party," usually a losing or excluded bidder. It can target the terms of a solicitation, the cancellation of one, or the award itself. It is the main legal tool a company has to make an agency explain a buying decision, and it is one of the few routine public windows into how federal contracts are actually awarded. ## The three forums - **The [[Government Accountability Office]].** Most protests go here. GAO has **100 days** to decide. A protest filed within 10 days of award, or 5 days after a required debriefing, triggers an **automatic stay** of contract performance under the Competition in Contracting Act. That stay is why GAO is the default. - **The [[Court of Federal Claims]]**, under the [[Tucker Act]]'s procurement jurisdiction. There is no automatic stay, but it offers a fuller record and a judge, and protesters increasingly start here. - **The contracting agency itself.** This is the cheapest and fastest route, and the least independent. ## How to read the outcomes GAO does not re-score proposals. It asks a narrower question: did the agency follow its own stated evaluation criteria and document its reasoning? That shapes what each outcome means: - **Sustained.** GAO finds the agency erred and recommends a fix. - **Denied.** The agency's *process* held up. That doesn't necessarily mean the protester's product was worse. - **Corrective action.** The agency voluntarily re-evaluates or reopens before GAO rules, and GAO dismisses the protest as moot. This signals the agency saw a problem without conceding one, and it is how most successful protests end. **The FY2025 numbers** (GAO's annual report to Congress): **1,688** protests filed, down 6% and falling since FY2023's peak of more than 2,000. GAO issued 380 merits decisions, with a **sustain rate of 14%** but an **"effectiveness rate" of 52%**. That is the share of protests in which the protester got *some* relief, whether through a sustain or through corrective action. The gap between 14% and 52% is the whole story: a protest rarely wins in a decision, but it often wins before one. ## The case study: Anduril and the DHS counter-drone contract The vault's clearest example is [[Anduril DHS Counter-UAS IDIQ]]. On Aug. 5, 2026, DHS awarded a $1.5 billion five-year counter-drone vehicle. [[Anduril]] got a seat on the services track but was left off the hardware track. It protested on Aug. 12. DHS agreed to re-evaluate, GAO dismissed the protest about three weeks after filing, and by **Sept. 16** DHS had added Anduril to the hardware track. There was no ruling that the original evaluation was wrong. The protest mechanism reversed a competed result without ever re-scoring it. That is a fact about the protest system, and it matters for the "new defense primes versus legacy primes" story told in [[Anduril Watch Log]]. The disruptor used the incumbents' favorite tool. ## Why it matters here For [[The Spending Gap]] and the vault's contract tracking, protests are the evidence layer. Sole-source awards ([[Sole Source]]) and big [[IDIQ]] vehicles are where protests cluster, and a corrective action is often the only public sign that an award was shaky. ## See Also - [[Government Accountability Office]] · [[Court of Federal Claims]] · [[Tucker Act]] - [[IDIQ]] · [[Sole Source]] · [[Termination for Convenience]] - [[Anduril DHS Counter-UAS IDIQ]] · [[Anduril Contracts]] · [[Anduril Calendar]] · [[Economics Lexicon]]