Kentucky Primary Between Massie and Gallrein Becomes Most Expensive Congressional Race in History at $30M+

More than $30 million has been spent on the Kentucky Republican primary between incumbent Rep. Thomas Massie and challenger Ed Gallrein, making it officially the most expensive congressional race in US history. The figure underscores how outside money and political action committees have reshaped even down-ballot primary contests.

Massie, a libertarian-leaning Republican known for his opposition to federal spending and surveillance, has drawn sustained national attention — and sustained opposition funding — throughout his tenure. The scale of spending in a single primary race signals how politically consequential individual congressional seats have become, particularly those held by members who frequently break with party leadership.