Democratic Primary in Border District Shows Divides on Immigration Policy

A Democratic primary fight in a southern-border congressional district is highlighting the party’s broader turmoil over immigration policy and whether it can hang onto the support of moderate and Hispanic voters.

Nine-term Rep. Henry Cuellar, in a rematch of a close 2020 race, faces progressive lawyer Jessica Cisneros, who lost by fewer than 3,000 votes in their last race in Texas’s 28th Congressional District. Ms. Cisneros got a boost in fundraising and a fresh look from some voters after the Federal Bureau of Investigation last month raided Mr. Cuellar’s home and campaign office....