President Donald Trump said Monday the tariffs against China would "go up substantially higher" than 145% if a longer-term trade deal is not reached before 90 days.

The day began with pomp in the Saudi capital, Riyadh, and ended in Qatar after the U.S. leader was greeted with camels and sped to what he said was a “perfecto” marble palace.

U.S. President Donald Trump said on Thursday that Qatar will invest $10 billion in coming years in the Al Udeid Air Base southwest of the country's capital Doha, the largest U.S. military facility in the Middle East.

President Donald Trump is set to visit a U.S. installation at the center of American involvement in the Middle East as he uses his four-day visit to Gulf states to reject the “interventionism” of America’s past in the region.

P resident Donald Trump announced on Tuesday, May 13, that he plans to end the U.S. sanctions imposed on Syria, which have been in place for over 45 years. Announcing the news on the first day of his Middle East tour, during the U.S.-Saudi Investment Forum, Trump said he would be lifting sanctions “in order to give them [Syria] greatness.”

President Trump delivered remarks Tuesday at a U.S.-Saudi investment summit, as he marks his first international trip of his second term.

Some Republican senators say they have questions about President Trump's plan to take a $400 million jet from Qatar, but even those with concerns stopped short of criticizing him.

President Donald Trump announced on Wednesday a $96 billion deal between Qatar Airways and Boeing, a symbol of the diplomatic maneuvering defining his presidency. The agreement, signed in Doha during Trump’s Middle East tour,