Forrest's European tour victory was at Trump International Golf Links in Aberdeen on Sunday and, shortly after collecting his trophy, he was being hailed by the owner and 47th president of the USA over FaceTime.
"I watched it... he's some player. I look forward to playing with him - in fact I will play with him tomorrow if he could get on a plane," Trump said in the call, shared on X by the Tour.
"What a round of golf. What three rounds of brilliant golf. It's a great honour you won, thank you very much."
Forrest, who lifted his maiden tour title at St Andrews four years ago, took control of windy conditions over the weekend but saw his three-shot overnight advantage trimmed to two after Todd Clements' birdie on the opening hole.
But when Forrest birdied the fourth and Clements carded a triple-bogey eight at the same hole, the Scot led by five and never looked back.
The world No.294 added two more birdies and a dropped shot in a closing 72, but even had the luxury of winning on eight-under-par despite a double-bogey at the last.
"It's amazing, just speechless," Forrest said. "I think it is the same week as I won four years ago on the calendar so just amazing, that must say something about this week and being at home.
"I just can't believe it. It's been such a tough year on the golf course. It's just a crazy game that you can go and come out and do this, with what feels out of nowhere.
"It's just that old chestnut that one week can turn things around and it has."
Joe Dean parred the last nervelessly to claim solo second at four under, with John Parry a shot further behind alongside Norway's Kristoffer Reitan and Denmark's Jacob Skov Olesen.Â
Australian David Micheluzzi, who had earlier in the week had the honour of playing the first round on Trump's other, much trumpeted new course at the links, concluded with his third under-par round of the tournament, a one-under 71, to end up with a top-10 finish at level par.
Elvis Smylie had a 73 to end up at five over, tied for 31st place, while Jason Scrivener finished a shot further back in joint-42nd after his final-round 70.
