These four elected officials–U.S. Sens. Ted Cruz (R-Texas) and Rand Paul (R-KY.), Govs. John Kasich (R-Ohio) and Nikki Haley (R-S.C.)–all attended the billionaire Koch brothers’ summit with the country’s “leading conservative donors” in California this weekend, according to the New York Times.

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Those discussions unfolded over two days at the Renaissance Esmeralda, a sprawling golf resort that has previously hosted the Kochs’ twice-yearly conferences. The atmosphere was equal parts revival and situation room, participants said: Phones and electronic devices were banned from some panels, as Koch strategists detailed next year’s electoral battlegrounds and donors committed contributions to particular states or projects.