National Rally for Reform and Development

The National Rally for Reform and Development (RNRD)  (Arabic: التجمع الوطني للإصلاح و التنمية‎‎, often simply: Tewassoul), is an Islamist political party in Mauritania. The party put forward their leader, Mohamed Jemil Ould Mansour, as their candidate for the 2009 Mauritanian presidential election.

The party is a part of the Muslim Brotherhood, which is considered a terrorist organization by the governments of Bahrain, Egypt, Russia, Syria, Saudi Arabia and United Arab Emirates.

Tewassoul is a member of the opposition Coordination of the Democratic Opposition, and currently has 4 seats in the National Assembly, and 1 seat in the Senate.