Sign up for the Slatest to get the most insightful analysis, criticism, and advice out there, delivered to your inbox daily. The “nonprofit killer” bill is alive again. House Republicans’ draft budget bill included a clause that would allow President Donald Trump’s Treasury Department to strip the tax-exempt status of any nonprofit it deems a “terrorist-supporting organization.” If that sounds familiar, it’s because similar legislation came before the House last year (after earlier iterations) as HR 9495, the “Stop Terror-Financing and Tax Penalties on American Hostages Act.” Under that legislation, the treasury secretary could deem any nongovernmental organization to be...