Managing Uncertainty in the House of Representatives: Adaption and Innovation in Special RulesThe postreform House of Representatives of the 1980's is strikingly different from the House of the 1970s. A most important change is the increasingly creative use of special rules, which structure floor debate on major legislation. The new trade of special rule craftsmanship now plays a pivotal role in managing the uncertainties of decisionmaking in the House. During the 1970s new issues and new members disrupted old ways of doing business, while