The Trump administration is preparing to impose sweeping sanctions on the International Criminal Court, according to officials, a sharp escalation in Washington’s efforts to dismantle the institution after it issued an arrest warrant for Israeli Prime Minister Benjamin Netanyahu. The sanctions would forbid most transactions with the ICC after a grace period of six to seven months, according to documents viewed by The Wall Street Journal and U.S. officials. That could potentially cripple the court by prohibiting it from conducting transactions in U.S. dollars, cutting it off from much of the global financial system. It is unclear when a final…