The source of arts funding, especially in the non-profit sector, has come under scrutiny, with museums withdrawing ties with Sackler, Yana Peel resigning after controversy around her business affiliations with the NSO group, artist Phil Collins withdrawing from a show in protest of a trustee's ties to for-profit prisons, and Warren Kanders resigning from the board of the Whitney Museum of American Art. Question: Where do you think galleries should draw the line in terms of whom they sell to