Something is happening in the Republican Party that has not happened in living memory.
The party of unity, tradition, order and hierarchy is breaking apart over one man who personifies the concept of disruption.
Donald Trump's so-far inexorable advance toward the Republican presidential nomination has divided the party. This divide is not like the garden variety primary fights of recent cycles. It goes beyond the familiar squabbles of the party's postwar era (center versus right, moderate versus conservative, eastern versus western).