The tax proposals in the House and Senate, supported by the president, would significantly cut charitable donations and also harm charities by causing significant funding cuts in the Federal programs they rely upon for a big part of their money: https://www.philanthropy.com/article/Opinion-Nonprofitsthe/241775?cid=pt&utm_source=pt&utm_medium=en&elqTrackId=2942b015e34048f1b71d1160221ba1e5&elq=cae78ad66b25464faa8fbc02ddd69427&elqaid=16757&elqat=1&elqCampaignId=7239