In an obscure move that hasn’t garnered much attention, President Trump has begun the process of withdrawing from the international postal union that establishes protocols for global mail delivery, a move which threatens to jeopardize the ability of Americans overseas to cast absentee ballots.

As recently as last week, the White House convened a meeting of stakeholders who work with overseas voters to discuss the exit, TPM has learned. But voting advocates remain apprehensive that the federal and state governments are unprepared for the ramifications of a U.S. withdrawal from the postal union, which could come as soon as this fall.

Tierney Sneed has our exclusive report.