Riyadh is reportedly planning to build a military base, canal and nuclear waste dump to physically isolate its neighbor.
Mueller is reportedly investigating a firm linked to George Nader, an adviser to the United Arab Emirates who frequently met with Jared Kushner.
Qatari officials reportedly decided against sharing the details with Mueller to avoid damaging relations with the Trump administration.
Saudi Arabia’s crown prince reportedly accused Turkey of wanting a new caliphate and Iran of exporting revolution.
The Trump administration’s decision to back the Qatar blockade could have put U.S. troops’ lives in danger, Senator Chris Murphy said.
Kushner Cos. reportedly solicited investment from Qatar for its troubled luxury tower at 666 Fifth Avenue in Manhattan.
China, Egypt, India, Iraq, Saudi Arabia, Sudan, Syria and Turkey were among those looking to get their hands on the S-400 missile defense system.
Washington is trying to use its influence to end the diplomatic impasse in the Gulf.
Turkey and Iran, traditional foes, have established common ground in Iraq, Syria and Qatar as regional alliances shift.
Reports Tuesday suggested the president had stepped in to prevent military action.
A Gulf rift has extended to social media, and the photo-sharing platform has found itself in the middle.
Mounting tensions between Qatar and its neighbors spilled over in June, when Saudi Arabia, Egypt, the United Arab Emirates and Bahrain all cut diplomatic ties with Qatar.
Qatar has accused Saudi Arabia of deliberately making it difficult for its pilgrims to obtain permits to go to Mecca.
Saudi Arabia and allies Bahrain, Egypt and the United Arab Emirates have accused Qatar of funding terrorist groups abroad.
The move would cost Abdullah the equivalent of $600,000 to fly between 1,200 and 1,600 pilgrims to Jeddah or Medina.
Email exchanges between Emirati and American officials show the UAE wanted Abu Dhabi to host the Taliban embassy.
Saudi Arabia's foreign minister says Qatar asked his country to cede control of Islam's two holiest sites, but Qatar denies doing so.
Otherwise, migrant labor abuse will be the gift that keeps on giving for Qatar’s political opponents.
Without regulation, the use of cyberspace for attacks will contribute to an online arms race.
The ongoing political crisis between Qatar and other Gulf states highlights one of the problems of long-term sexism.
U.S. Secretary of State Rex Tillerson has been engaged in shuttle diplomacy to try to bring an end to the regional crisis.