Will a new five-year farm bill become law by December 31, 2026?

Senate Agriculture Chair John Boozman and Majority Leader John Thune have tied their credibility to calling the one-year SNAP cost-shift delay a final offer. Thune told Democrats at the September 16 markup that 'your states are going to pay' unless they take the deal. Ranking Democrat Amy Klobuchar says finishing this year is a Democratic goal, yet she repeated the demand for a two-year delay. Each side has publicly framed a small difference in years as a test of resolve, which makes it hard to split without someone appearing to fold.

The election sets the incentives. If Democrats win a chamber, their incoming leaders gain from waiting until January to write the bill with more power, while outgoing Republicans gain from locking in their text in the lame duck. Farm-state Republicans need a win to show rural voters, but the most urgent farm money already went out in the 2025 tax and spending law, so the political cost of another extension is lower than in past cycles.

Reference class: farm bills pending when a Congress reached its final lame-duck session after the old law expired. In 2012 the bill stalled and was extended in the January 2013 fiscal cliff deal. In 2018 the bill was completed in the lame duck and signed December 20. In 2024 Congress again passed only an extension. That is 1 success in 3 tries, about 33 percent. The 2014 farm bill shows the other pattern: it became law February 7, 2014, more than a year after the 2008 law lapsed.

Closest analogue: 2018. A midterm lame duck, a Republican trifecta that had just lost the House, and a bitter SNAP fight (work requirements) that was resolved in late November by dropping the House's demands. Where it breaks: in 2018 the Senate had already passed its bill with broad bipartisan support before conference, so the lame duck only had to reconcile two passed texts. In 2026 the Senate bill has zero committee Democrats behind it and has not reached the floor.

Start from the lame-duck base rate of about 33 percent (1 of 3).

Subtract 10 points because the Senate bill lacks the bipartisan floor vote that made 2018 possible: it cleared committee 12 to 11 with every Democrat opposed, and only after Mitch McConnell returned for the vote. Subtract 8 points because the 2025 law already delivered the commodity and crop insurance increases, removing the usual urgency. Add 2 points because December 11 creates a must-pass vehicle that a negotiated farm bill could ride, and the SNAP gap (one year versus two) is narrow enough to split.

33 minus 10 minus 8 plus 2 lands at 17 percent, band 10 to 27 percent. Kalshi's contract on a farm bill becoming law before January 1, 2027 trades around 15 to 16 cents, close to our number.