August 1, 2023

Nuveen California Select Tax-Free Income Portfolio

333 West Wacker Drive

Chicago, IL 60606

Re: Nuveen California Select Tax-Free Income Portfolio (File No. 333-271871)

Ladies and Gentlemen:

We hereby consent to all references to our firm in Pre-Effective Amendment No. 1 under the Securities Act of 1933 (the “Securities Act”) to the Registration Statement of Nuveen California Select Tax-Free Income Portfolio. In giving such consent, however, we do not admit that we are within the category of persons whose consent is required by Section 7 of the Securities Act and the rules and regulations thereunder.

Very truly yours,

/s/ Morgan, Lewis & Bockius LLP

				Morgan, Lewis & Bockius LLP
				1111 Pennsylvania Avenue, NW
				Washington, DC 20004		+1.202.739.3000
				United States		+1.202.739.3001