A feeble Executive implies a feeble execution of the government. The Federalist Papers No. 69. Rainfall on the eastern half of the divide drains into local streams and rivers that ultimately reach the Gulf of Mexico and the Atlantic Ocean.
Water falling on the western slope drains to the Pacific Ocean.
Water falling at the divide may flow either east or west. Depending on the exact way the rain drop falls and the state of the soil, a particular rain drop may find its way to either the Atlantic or the Pacific watershed. A divided watershed is a metaphor for pivotal events that may potentially yield wildly different outcomes. The current allegations that the President suborned perjury and obstructed justice represent a watershed event with two possible outcomes. Either the allegations will remain unproven or the Administration will unravel.