President Trump signed an executive order Thursday that directs the executive branch to "honor and enforce" existing protections for religious liberty, and asks agencies to "consider issuing amended regulations" for organizations that don't want to cover contraception in employer health insurance plans.In remarks in the Rose Garden, Trump said he was fulfilling a campaign pledge to "take action" on religious liberty. He signed the order after a ceremony to mark the National Day of Prayer.Trump said that among other things, he was "directing the Department of Justice to develop new rules to ensure ... religious protections are afforded to all Americans." This section of the order is brief, directing the attorney general to "as appropriate, issue guidance interpreting religious liberty protections in Federal law."Before the text was released, the White House said the order would urge the IRS to use "discretion" on laws regarding religious organizations, and would offer "regulatory relief" to religious objectors to contraception coverage.Those proposed actions were criticized as inadequate by some advocates for religious freedom."It's not all that we'd hoped it would be," Greg Baylor, senior counsel with the Alliance Defending Freedom, told NPR.But Mathew Staver, founder and chairman of the Liberty Counsel, said he was "pleased" with the order, telling NPR in a statement that Trump "set forth the general policy" of protecting religious freedom, and noting that he has "significant control" over federal agencies that could take action in the future.In the meantime, here's a look at what Trump's executive order likely will — and won't — do.The Johnson AmendmentThe White House originally said Trump is urging the IRS to use "maximum enforcement discretion" regarding the Johnson Amendment, which was passed in 1954 and prohibits 501(c)(3) nonprofits from endorsing specific political candidates. But the order itself instructs the Department of Treasury to enforce the law exactly as it's written.In the Rose Garden on Thursday, Trump said the rule threatens the tax-exempt status of a church if a leader "speaks about issues of public or political importance." That is false: The amendment applies only to advocating for or against a specific candidate; taking positions on issues is permitted.Trump's executive order writes that speech on "moral or political issues from a religious perspective" should not be penalized, which is in line with existing IRS policies. It suggests an exception for speech that has "ordinarily been treated" as an endorsement — in other words, the order tells the IRS to enforce the law as it has in the past.The amendment in question covers all tax-exempt charities, but its effect on tax-exempt churches, specifically, has been fiercely protested — albeit rarely enforced.In fact, there's only one known instance of a church losing its tax-exempt status over electioneering: The Church at Pierce Creek in New York, after it took out a full-page newspaper ad opposing Bill Clinton in 1992. After losing its tax-exempt status, the church continued operating and still benefited from tax breaks on its property, Reuters reports.Opponents of the Johnson Amendment say such punishment is rarely seen because pastors are intimidated into silence.But in recent years, some churches have participated in "Pulpit Freedom Sunday," when they blatantly violate the Johnson Amendment and all but dare the IRS to take action. The Alliance Defending Freedom, which organizes the event, said that after eight years of public violations, no church had been punished by the IRS for participating.Meanwhile, as NPR's Jessica Taylor reported Wednesday, many religious leaders — including an overwhelming majority of evangelical pastors — don't believe preachers should make endorsements from the pulpit.A change to the tax law to actually eradicate the Johnson Amendment would require action by Congress. That could have a dramatic effect on campaign fundraising, if churches and nonprofits were allowed to funnel tax-free money into political campaigns.But Trump doesn't have the authority to eliminate the law single-handedly. He could tell the IRS to make the amendment a low enforcement priority, which the agency appears to have been doing for years.According to a Pew survey last year, 14 percent of recent churchgoers heard a presidential candidate being directly supported or opposed from the pulpit. Black protestants were most likely to have heard such a message — largely in favor of Hillary Clinton or opposition to Trump. At the Rose Garden, Trump celebrated the long history of political activism within black churches, particularly, for "spurring our nation to greater justice and equality."Religious groups and contraception The Trump administration says the president is offering "regulatory relief" to organizations that, because of religious objections, don't want to cover contraception in their employer health plans.The executive order itself, meanwhile, instructs the secretaries of Treasury, Labor and Health and Human Services to "consider issuing amended regulations, consistent with applicable law, to address conscience-based objections" to the contraception mandate.The Affordable Care Act requires that health insurance plans cover contraception as part of preventative care for women, at no cost to the employee.The law had "an automatic exemption for houses of worship, like churches — but not for nonprofits like religious schools and hospitals," NPR's Nina Totenberg explained last year. "Those nonprofits were given a workaround to accommodate their objections, but some say that accommodation still burdens their free exercise of religion."The workaround involved the organization opting out of the mandate and sending a letter to the government informing them of that decision. At that point, the federal government would step in to cover the contraception instead. (Some religious groups have claimed the law requires coverage of abortion-inducing drugs called abortifacients as well as contraception; as NPR has reported, the overwhelming medical and scientific consensus is that none of the mandated contraceptive methods cause abortions.)As Julie Rovner wrote last year, dozens of religious nonprofits claimed "that even the act of notifying the government of their objections (which would, in turn, trigger a requirement for the government to arrange coverage) made them 'complicit' in providing a service they see as sinful."The issue has been the subject of multiple long-running lawsuits.Baylor of the Alliance Defending Freedom said "regulatory relief," if provided, would still be inadequate."The answer to this problem has been quite obvious all along," Baylor said. "What the administration needs to do is to craft an exemption that prohibits everyone who objects on moral grounds from violating their convictions through the content of their health plan."The ACLU, before the text of the order was published, criticized the move as well, calling it an attempt to "permit discrimination" and vowing to sue the administration."It's a dual dose of pandering to a base and denying reproductive care," the ACLU said. "We will see Trump in court, again." Copyright 2017 NPR. To see more, visit http://www.npr.org/.