The Trump administration’s policies could cost Republicans in a state that is being hit hard by expensive diesel prices and uncertainty over trade.

Senator Katie Britt of Alabama was the latest national Republican to visit Iowa to campaign for Representative Ashley Hinson. President Trump will follow on Thursday.

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We assess three campaign ads in the battleground states that have focused on the cost of living.

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Plus, a big debate night in Senate battlegrounds.

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In a top Senate battleground, Representative Ashley Hinson, the Republican nominee, sparred with Josh Turek, her Democratic rival, on policy issues ranging from Medicaid to term limits.

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Representative Ashley Hinson, the Republican nominee, and Josh Turek, her Democratic opponent, have both been targeted over campaign donations.

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