YEREVAN, AUGUST 24, ARMENPRESS.  US President Obama returned from a vacation to stare down an end-of-the-year stretch that promises either to cement some of his biggest remaining goals – or hasten the arrival of dreaded irrelevance. Barack Obama returned to Washington late Sunday after spending two weeks vacationing on the island of Martha's Vineyard with his family.

Armenpress reports, referring to Yahoo News that Obama, his wife Michelle and their daughters Malia, 17, and Sasha, 14, then boarded the presidential helicopter Marine One, arriving about 20 minutes later.

The US president, whose term ends in a little more than 500 days, is gearing up for a hefty workload in September.

Chinese President Xi Jinping and Pope Francis will visit, and the UN General Assembly gathering of world leaders will take place at the end of the month in New York.US President Barack Obama and First Lady Michelle Obama (R) step off Air Force One with daughters Ma …

He is also facing a stiff battle against Republicans in Congress over the nuclear accord signed between Iran and world powers in July.

Congress is due to vote in the coming weeks on the deal aimed to prevent Tehran from obtaining nuclear weapons in exchange for sanctions relief.

Obama is due to kick off his week with a stop in Las Vegas on Monday to deliver remarks at the National Clean Energy Summit.

Photo by AP