What he did was a source of ongoing controversy.

There has been ongoing controversy about the name of the stadium.

There is ongoing controversy over the use of "mother tongues" in schools.

The future of the wetlands around the lower river has been an ongoing controversy between development and preservation groups in recent decades.

This would have implications for the ongoing controversy regarding human reproductive rights.

There is an ongoing controversy about the naming of the revolution.

First, there has been an ongoing controversy about an additional access road to the site.

A point of ongoing controversy about courtly love is to what extent it was sexual.

An example of this would be the ongoing controversy over Poirot's age.

The decision was added to the ongoing national controversy questioning the system's constitutionality.