The United States opened up a commanding five-point lead over the Internationals before play was suspended at the 10th Presidents Cup on Saturday with four matches yet to be completed after another day of foul weather.
Needing 17-1/2 points to retain the trophy, the Americans ended a day of sporadic sunshine and occasionally heavy downpours leading the Internationals by 11-1/2 points to 6-1/2.
The Internationals, in dire need of a resurgence before Sunday's concluding 12 singles, did make some inroads late on Saturday before play was suspended at a soaked and soggy Muirfield Village because of fading light.
Of the four foursomes matches still to be completed on Saturday, Nick Price's Internationals were leading in two, all square in one and trailing in the other.
However, his players will need to build further momentum when play resumes at 7.35 am local (1235 Irish time) on Sunday if they are to avoid a fifth successive defeat in the biennial team competition, and an eighth in ten editions.
With Phil Mickelson and Tiger Woods providing a few moments of magic, the Americans had tightened their grip on the trophy with a superb display of golf in the morning's fourballs to lead by 10-1/2 points to 6-1/2.