> Protecting consumers, including renters, appears be a large part of Mr. Mamdani’s early agenda as mayor. The actions of Mr. Mamdani, a democratic socialist, appear so far to indicate a willingness to govern based on a leftist political agenda.

Using the term "leftist" to describe something Nixon would do is absolutely a sign the Overton Window has shifted.

https://www.presidency.ucsb.edu/documents/executive-order-11...