Trump’s lawyer helped birth the GOP effort to politicize churches. Now his dream may come true.

Jay Sekulow once represented a church that lost its tax-exempt status for running ads against Bill Clinton.Jay Sekulow CREDIT: AP/Steve Helber

Repealing the so-called Johnson Amendment — a tax code provision that bars churches and other nonprofits from endorsing political candidates — has become something of a banner issue for Republicans in 2017.

President Donald Trump attempted to weaken the p...