I'm guessing that a lot of our readers already know about this. But if you don't, read about it here in Amy Howe's post at scotusblog. Here's an excerpt from her post:
It is rare for the Office of the Solicitor General to change its position in a case before the Supreme Court after a change in administrations, even when the party in control of the White House changes. But that is exactly what happened last week. … The about-face came in National Labor Relations Board v. Murphy Oil USA, in which the justices have agreed to decide whether agreements to forgo class actions or collective proceedings and instead resolve employer-employee disputes through individual arbitration are enforceable under the Federal Arbitration Act. In its petition for review on behalf of the NLRB, filed in September 2016, the Solicitor General’s office had argued that such agreements are not, because the National Labor Relations Act protects employees’ ability to engage in joint actions regarding the terms or conditions of their employment. On January 13, 2017, just seven days before the inauguration of President Donald Trump, the Supreme Court granted the NLRB’s petition, along with two others filed by employers (Ernst & Young LLP v. Morris and Epic Systems v. Lewis), and consolidated the three cases for one hour of oral argument.