New magnetic loops formed in the corona beneath coronal mass ejections,
CMEs, provide strong evidence that magnetic reconnection commonly occurs within the magnetic “legs” of the departing CMEs. Such reconnection is inherently 3-dimensional and naturally produces CMEs having magnetic flux rope topologies. Sustained reconnection behind CMEs can produce a mixture of open and disconnected field lines threading the CMEs. In contrast to the results of 2-dimensional reconnection, the disconnected field lines are attached to the outer heliosphere at both ends. A variety of solar and solar wind observations are consistent with the concept of sustained 3-dimensional reconnection within the magnetic legs of CMEs close to the Sun.