In a show of political support, billionaire philanthropist Miriam Adelson has poured $40 million into Republican super PACs, strengthening the party’s warchest ahead of the upcoming midterm elections. The funds are being directed toward two key organizations, the Senate Leadership Fund and the Congressional Leadership Fund, both of which play central roles in financing Republican campaigns across the country.

Adelson, a physician and businesswoman, is the widow of the late casino mogul Sheldon Adelson and has long been one of the most influential donors in American politics. Over the years, she has become especially known for her strong support of conservative causes and her unwavering backing of Israel. Her contributions have consistently placed her among the top political donors in the United States, with a track record of supporting candidates and initiatives aligned with her values—particularly on national security and U.S.-Israel relations.

This latest $40 million infusion is expected to have a major impact as Republicans work to defend and expand their position in Congress, particularly in close races.