* Companies say law is unconstitutional * Lawsuits seek to block enforcement * PBMs have faced scrutiny in multiple states (Updates to include CVS lawsuit in paragraph 1, additional information) By Diana Novak Jones CHICAGO, May 29 (Reuters) - CVS and Express Scripts filed lawsuits on Thursday seeking to overturn an Arkansas state law set to go into effect next...

* DOGE's future uncertain without Musk's leadership, says ex-staffer * Ex-staffer Lavingia describes unclear objectives at DOGE * DOGE says cost-cutting efforts saved $175 billion, but figures are disputed By Alexandra Ulmer May 29 (Reuters) - Without billionaire Elon Musk in the Trump administration, his cost-cutting Department of Government Efficiency project is likely to sputter out, a former DOGE staffer...

May 29 (Reuters) - Solar panel maker Meyer Burger shut down a U.S. factory in Arizona due to financial troubles, cutting all 282 employees, the Swiss company said on Thursday. The closure is a setback for solar industry efforts to build a domestic supply chain and reduce its reliance on China, the world's top solar panel manufacturer. Meyer Burger announced...

* Barrick seeks World Bank court intervention to prevent Mali mine takeover * Mali's new mining code challenges foreign companies * Barrick claims Mali moved goal posts on investment terms By Divya Rajagopal TORONTO, May 29 (Reuters) - Barrick Mining ( B ) has asked the arbitration tribunal of the World Bank to intervene in legal proceedings in Mali, as...