Trump throws ties with key ally Qatar into crisis

In a series of morning tweets, President Donald Trump threw Washington's relations with Doha into deep crisis on Tuesday and raised doubts about the future of the largest US air base in the Middle East.Trump publicly accused key regional ally Qatar of funding extremism, while tacitly backing a blockade of the emirate, home to the Al-Udeid Air Base near Doha where around 10,000 US military personnel are stationed.The base is also the regional headquarters of US special forces and air force comman