Joseph Jouthe, the Prime Minister of Haiti, resigned after violent crimes

The Supreme Court on Wednesday said it will take up a challenge to a new law that could lead to a ban on TikTok in the U.S, setting up a showdown over access to a widely popular app used by tens of millions of Americans.

Arguments will be heard by the high court on Jan. 10, an expedited timeline that allows for the court to consider the issue before the law takes effect on Jan. 19.

The Supreme Court said in a brief order that the Justice Department and lawyers for TikTok, as well as a group of users who separately challenged the law, should be prepared to argue whether the ban passed by Congress violates the First Amendment.

TikTok and its parent company, ByteDance, asked the high court earlier this week to temporarily block enforcement of the law while it appealed a decision by the U.S. Court of Appeals for the District of Columbia Circuit. The Supreme Court said in its order that consideration of that request for emergency relief is deferred pending oral argument.