In the 2024 U.S. Senate elections, the Republican Party regained control of the Senate, securing a majority with 53 seats. This power shift was marked by significant victories in critical states, notably Montana, Ohio, and Pennsylvania. In Montana, Republican Tim Sheehy defeated incumbent Democratic U.S. Senator Jon Tester. Similarly, in Ohio, Republican candidate Bernie Moreno defeated incumbent Democratic U.S. Sherrod Brown, further bolstering the Republican majority.

This outcome reflects a broader trend of Republican successes in the 2024 elections, including the presidential race, where Donald Trump secured a return to the White House. The Republican majority in the U.S. Senate is expected to have significant implications for the legislative agenda, particularly in areas such as tax policy, immigration reform, and judicial appointments. With control of both the executive branch and the U.S. Senate, the GOP is positioned to advance its policy priorities more effectively in the coming term.

Breakdown of the critical U.S. senate elections:

• Michigan: Democrat Elissa Slotkin defeated Republican Mike Rogers in the Michigan U.S. Senate election, maintaining the seat for Democrats.

• Montana: Republican Tim Sheehy defeated incumbent Democratic U.S. Senator Jon Tester, flipping it from Democratic to Republican control.

• Nevada: Democratic incumbent U.S. Senator Jacky Rosen secured re-election, maintaining her seat against Republican challenger Sam Brown.

• Ohio: Republican Bernie Moreno defeated incumbent Democratic U.S. Senator Sherrod Brown, contributing to the GOP's gains in the Senate.

• Pennsylvania: Republican David McCormick defeated incumbent Democratic U.S. Senator Bob Casey, flipping it from Democratic to Republican control.

• West Virginia: Republican Governor Jim Justice won the open U.S. Senate seat, flipping it from Democratic to Republican control.

• Wisconsin: Democratic incumbent U.S. Senator Tammy Baldwin secured re-election, maintaining her seat against Republican challenger Eric Hovde.