Barbara Boxer doesn’t take the bait:

Fiorina’s opponent, Democratic Sen. Barbara Boxer, said the mosque was an issue
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to be decided locally.

In Los Angeles, Boxer noted that she began her political career making local land-use decisions and would not want to be told how she should vote. Boxer served for six years on the Marin County Board of Supervisors before being elected to Congress.

“As a former county supervisor … that is a zoning decision, and that decision needs to be made locally,” she said at a turbine plant while promoting clean-energy jobs. “No U.S. senator told me what to do.”

Boxer said she would support whatever decision is made locally about the center.

Basically a no-comment on the establishment clause, versus Fiorina’s outright hostility