A Congressman proposes increasing the charitable tax deduction & a professor analyzes it, while the WaPo says the GOP tax plan will hurt charitable donations by increasing the standard deduction (3 links):

http://thehill.com/policy/finance/354825-key-conservative-republican-eyes-bigger-tax-break-for-charity

http://www.pbs.org/newshour/making-sense/analysis-tax-reform-impact-charitable-giving/

https://www.washingtonpost.com/news/wonk/wp/2017/10/11/the-gop-plan-to-simplify-taxes-could-put-charitable-giving-at-risk/?elq=727f70fbf8da4e7199f29a0a356b63a0&elqCampaignId=6923&elqTrackId=a52802238a4b4979880abb7d6294a842&elqaid=16045&elqat=1&utm_term=.e4e990c7ecf9