Americans are constantly told that democracy is threatened by dark money. Politicians denounce it. Advocacy groups campaign against it. Editorial boards warn that undisclosed funding allows wealthy interests to influence elections while avoiding public scrutiny.

They are right. The problem is that many of the people who make those arguments seem concerned about dark money only when it comes from the other side.

A recent investigation by Jewish Insider highlighted an increasingly sophisticated network of organizations connected to anti-Israel political activism, including Justice Democrats, the Institute for Middle East Understanding and the IMEU Policy Project. The reporting describes a web of financial relationships, shared personnel and coordinated political activity that has helped channel substantial resources into congressional primaries and issue campaigns across the country.

Some of the activities described may ultimately prove entirely lawful. Regulators and election authorities can determine whether any reporting irregularities or compliance issues exist. But legality is not the only question. The more important issue is transparency.

To be sure, campaign laws generally require advertisements to identify their sponsors. Voters are usually told who paid for a particular message. The challenge is that the disclosure often reveals very little. A political committee’s name may provide few clues about its donors, priorities, alliances or long-term objectives.

Nor does the message itself necessarily reveal the interests behind it. A group organized around Israel policy may attack a candidate over abortion, taxes or ethics because those arguments test better with voters. An organization motivated by other concerns may use Israel as a political weapon for the same reason. The disclaimer satisfies the law. It does not necessarily illuminate the interests driving the campaign. This principle should not depend on the cause being advanced.

For years, progressive activists have criticized conservative dark money organizations. More recently, anti-Israel activists have condemned AIPAC and other pro-Israel groups for their political spending. Yet many of the same voices become noticeably less interested in transparency when funding flows through organizations aligned with their own political objectives. That double standard undermines public trust.

The issue is particularly urgent because the debate over Israel has become increasingly central to American politics. What was once largely a foreign policy issue has become a defining test within certain Democratic primaries and activist circles. The Jewish Insider investigation describes a network that appears increasingly coordinated, well-funded and politically sophisticated. Whether one supports its objectives is beside the point.

Organizations on all sides of the Israel debate are investing heavily in shaping elections and public opinion.

The answer is not selective outrage. It is consistent transparency. Congress should continue strengthening disclosure requirements where appropriate. But transparency ultimately depends on something more important: aggressive reporting, independent watchdogs and citizens willing to ask hard questions. Journalists must trace funding streams, leadership overlaps, donor networks and organizational alliances. Voters deserve to understand not only who is speaking, but why.

The old advice remains the best advice. When political messages suddenly appear everywhere at once, when advocacy groups emerge seemingly overnight, and when activists insist that only their opponents’ funding deserves scrutiny, citizens should ask a simple question: Who is really behind this?

In a healthy democracy, finding the answer should not require an investigation.