Three links on the impact of the new tax law on the charitable sector—affordable housing, giving incentives and the inability of the sector to compensate for government cuts:
https://www.nytimes.com/2018/01/18/business/economy/tax-housing.html
https://www.bloomberg.com/view/articles/2018-01-18/the-tax-cuts-are-a-bad-deal-for-charities