Voters in New Hampshire and Rhode Island will choose Democratic and Republican nominees this week for November’s US midterm elections, among the final primaries before control of both chambers of the US Congress is decided. New Hampshire’s leading contest is to replace retiring Democratic Senator Jeanne Shaheen. US Representative Chris Pappas is favored in the Democratic primary, although democratic socialist Karishma Manzur has gained ground, while former governor John Sununu leads a Republican field that includes former senator Scott Brown. A Senate Republicans’ campaign-arm poll conducted in the final days of August showed Sununu ahead of Pappas by one point in a potential general-election matchup, with nearly one in four likely voters undecided. In Rhode Island, Democratic Governor Dan McKee faces pharmacy executive Helena Foulkes in a rematch of their closely fought primary four years ago. Foulkes has led McKee by as much as 38 points and outraised him, while public anger over the partial 2023 closure of a Providence freeway bridge has weakened the incumbent. The Republican governor’s primary pits Aaron Guckian against first-time candidate Elaine Pelino. The races highlight questions over Republican alignment with President Donald Trump and the ability of Democratic incumbents to withstand primary challenges.