Earlier quoted context omitted.
> Renters are a growing political force. Renters (often under rent control) are NIMBYs as well, don't understand or are convinced that supply and demand don't apply to housing.
Rent control is almost exclusive to California and New York. Ref: http://www.landlord.com/rent_control_laws_by_state.htm
So, if it's “almost exclusive” to any pair of states, it's New Jersey and New York, not NY and CA.
(The source is also inaccurate in at least one respect, in that NY by the description given on the page and CA due to Costa-Hawkins both meet the criteria for a “Yes” in State Prohibits or Preempts Rent Control column, but both have blanks in that column.)