concepts
type: Collection
type: ConceptGroup
member: two-thirds rule

congressional procedures
type: Concept
narrower: two-thirds rule

powers of Congress
type: Concept
narrower: two-thirds rule

two-thirds rule
type: Concept
broader: powers of Congress
broader: congressional procedures
definition: Candidates for the Democratic presidential or vice-presidential nomination faced an especially high hurdle during the party's first century. Unlike other major parties, the Democrats used a controversial rule that required a two-thirds majority vote of the national party convention to obtain either nomination. [Source: Elections A to Z; Two-Thirds Rule]