Sliding scrub brush for a floor mop

A mop comprising:

• a base plate having a generally flat lower surface configured to face a surface to be cleaned;
• a handle having a proximal end connected to the base plate, a distal end opposite the proximal end, and a handle axis extending form the proximal end to the distal end;
• a first grip connected at the distal end of the handle;
• and
• an auxiliary scrubber movably mounted to the handle and configured to move between an inactive position and an active position, the auxiliary scrubber comprising:
• a second grip,
• a scrubbing element that is spaced from the surface to be cleaned when the auxiliary scrubber is in the inactive position, and that contacts the surface to be cleaned when the auxiliary scrubber is in the active position, and
• an actuator joining the second grip to the scrubbing element.