Two family-owned businesses are asking the US Supreme Court to consider striking down President Donald Trump’s most sweeping tariffs, putting a high-stakes fight with worldwide economic implications before the justices for the first time.

Two American family-owned toy companies urged the Supreme Court on Tuesday to step into the legal fray over President Donald Trump’s tariffs, asking the justices to quickly resolve the issue of whether the administration overstepped its authority by unilaterally launching a global trade war.