From Longman Dictionary of Contemporary Englishmajority leadermaˈjority ˌleader noun [countable] PGPPPGthe person who organizes the members of the political party that has the most people elected, in the US House of Representatives or Senate → minority leader
Examples from the Corpus
majority leader• Trent Lott, R-Miss., who was elected to his first full term as majority leader last month.• Many thought Dole should at least relinquish his post of Senate majority leader to gain freedom from legislative strictures.• Dole supporters described the Senate majority leader as a decent, honest person.• However it was held up by Dole, who is now the Senate majority leader and Republican presidential candidate.• His rise to Senate majority leader was in no small measure a reward for his debating success against Democratic opponents.• Bob Dole, R-Kan., the majority leader, had held many meetings with Clinton on the Bosian mess. 