The President is not Immune

 
About a reference to Lewis Carroll by Brian Frosh, the Maryland Attorney General:

»President Trump’s personal lawyers are seeking to pause evidence collection in a case regarding the constitutionality of the revenue stemming from his Washington hotel, CNN reported Friday. […] Maryland Attorney General Brian Frosh (D) slammed the lawyers’ request. “I think they may have violated Lewis Carroll’s copyright on ‘Alice in Wonderland,’” he told CNN, adding that the argument that the president is immune from the Constitution’s emoluments clause is “absurd.”«
(2018-12-15: https://thehill.com/homenews/administration/421516-trump-lawyers-try-to-suspend-evidence-collection-in-emoluments-case)

»“This argument has been stolen directly from Alice in Wonderland. If I was Lewis Carroll I would be infuriated,” Frosh said.«
(2018-12-15: https://www.washingtonpost.com/business/trump-lawyer-seeks-to-send-emoluments-case-to-appeals-court/2018/12/14/9b80fce2-ffec-11e8-a17e-162b712e8fc2_story.html)

I don’t know to which lines in “Alice…” the attorney was referring. Any hints?

Alice books:
Alice’s Adventures in Wonderland
Through the Looking-Glass