  Neutrinoless double-beta decay searches play a major role in determining the
nature of neutrinos, the existence of a lepton violating process, and the
effective Majorana neutrino mass. The MAJORANA Collaboration assembled an array
of high purity Ge detectors to search for neutrinoless double-beta decay in
Ge-76. The MAJORANA DEMONSTRATOR is comprised of 44.1 kg (29.7 kg enriched in
Ge-76) of Ge detectors divided between two modules contained in a
low-background shield at the Sanford Underground Research Facility in Lead,
South Dakota, USA. The initial goals of the DEMONSTRATOR are to establish the
required background and scalability of a Ge-based next-generation ton-scale
experiment. Following a commissioning run that started in 2015, the first
detector module started low-background data production in early 2016. The
second detector module was added in August 2016 to begin operation of the
entire array. We discuss results of the initial physics runs, as well as the
status and physics reach of the full MAJORANA DEMONSTRATOR experiment.
