Sen.-elect Adam Hamilton (D-KS) warned his party on Monday that it does not necessarily hold a firm grasp on voters it flipped blue last week, cautioning that the blue wave could relapse if Democrats do not focus on delivering results.

Hamilton is one of at least seven Democrats who managed to wrest a Senate seat from Republican control in the 2026 elections, allowing his party to seize a majority in the upper chamber. In Kansas, Hamilton toppled Sen. Roger Marshall (R-KS) in a state considered traditionally red territory.

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