take over the reins(redirected from take up the reins)
take over the reins
to begin controlling an organization or a country She offered good advice to the new Speaker as he took over the reins of leadership in the House of Representatives.
Etymology: based on the idea that the person who handles the reins (straps) that control a horse has control of the vehicle the horse is pulling
take over/up the reins
to take control of something, especially an organization or a country (often + of ) He took up the reins of government immediately after the coup.See hand over the reins, tighten the reins