A recent Gulf News report sheds some light on how and why the United States helped bring the Muslim Brotherhood and its Islamist allies to power, followed by all the subsequent chaos and atrocities in the Mideast region.
Large portions of the report follow with my commentary interspersed for added context:
Dubai: For the past decade, two successive US administrations have maintained close ties to the Muslim Brotherhood in Egypt, Tunisia, Syria and Libya, to name just the most prominent cases.
The Obama administration conducted an assessment of the Muslim Brotherhood in 2010 and 2011, beginning even before the events known as the "Arab Spring" erupted in Tunisia and in Egypt. The President personally issued Presidential Study Directive 11 (PSD-11) in 2010, ordering an assessment of the Muslim Brotherhood and other "political Islamist" movements, including the ruling AKP in Turkey, ultimately concluding that the United States should shift from its longstanding policy of supporting "stability" in the Middle East and North Africa (that is, support for "stable regimes" even if they were authoritarian), to a policy of backing "moderate" Islamic political movements (italics added for emphasis throughout).