Later on Monday, the White House said that Salman had spoken with Obama by phone to "express his regret" for missing the summit and to review the agenda for the meeting with Gulf leaders.
Duran Duran's "A View To Kill" also came close but narrowly missed the summit.
Last year, Trump was in Manila for meetings related to the regional bloc, but he left early and missed the summit itself.
Glasgow looked a shadow of the side that had surged to the league's summit, missing 23 players due to a combination of Scotland commitments, injuries and suspensions.
Mr Obama will miss two summits, including the Asia-Pacific Economeetingoperatinn (Apec) meetIndonesiadonesIndonesia
Missing the Asian summits during the shutdown debacle was very bad.
Three climbers died and two others went missing while descending the summit of Mount Everest – a toll that raised concerns about overcrowding in the "death zone" at the top of the world's tallest peak.
A major international summit on missing people is hoping to tackle exploitation and trafficking.
Unfortunately, a key topic missing from this year's summit was how HBCUs are both a source and can be a solution to the growing Black-White achievement gap.
Tom Ballard went missing trying to reach the summit of a peak known as "Killer Mountain" in Pakistan.
