take over 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
See also: reins, take

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
See also: reins, take
References in periodicals archive ?
Belly will come back in and take over the reins and we will welcome the England boys back.