Current NSDA LD Topic: November–December 2026
De-Extinction — Resolved: De-extinction is unethical.
Free De-Extinction topic guide · Shop the complete De-Extinction file
LD Debate Briefs & Lincoln-Douglas Evidence
Shop current Lincoln-Douglas debate briefs, LD debate evidence, topic files, subscriptions, and strategy resources for NSDA and UIL competition. Click below to sort by category.
What You Get
TFF’s LD files give students a full map of the topic before they ever debate a side: topic overview, resolution analysis, applied definitions, core vocabulary, framework guidance, argument maps, and case-selection tools.
Main topic files include hundreds of cards, affirmative and negative cases, a negative off-case toolkit, blocks and frontlines, printable preflows, round-use strategy, quick-reference tools, student-ready PDFs, editable coach files, and classroom materials. Exact contents and counts vary by topic; see each product page.
Choose your LD preparation
Start with the complete main topic file for two-sided cases, evidence, strategy, and teaching materials. Add a 1,000 MORE CARDS expansion when you want additional evidence for that topic.
The NSDA LD Subscription covers every 2026–2027 main topic file, including Nationals. The separate 1,000 MORE CARDS subscription covers the evidence expansions. Main-file subscriptions do not include the expansions, and expansion subscriptions do not include the main files. Already subscribed? Check your included releases before buying an individual file.
