California Democrats have implemented a newly approved redistricting plan that adds five more U.S. House seats they consider more competitive, aiming to improve their chances in the November elections amid concerns about former President Donald Trump’s influence. The map was authorized by voters last year, giving Democrats the ability to redraw the state’s congressional districts. Now, a primary election serves as a major test of whether the additional “winnable” seats can be secured under the new lines. Some Democrats express uncertainty about the outcome in at least one district near San Diego, where internal party dynamics and candidate positioning could determine whether the party ultimately gains or retains the seat heading into the general election. The central issue is whether Democratic control of these newly drawn districts translates into measurable electoral success in the primary, and whether any candidate challenges or disputes could leave Democrats without a nominee in one of the districts. Overall, outlets describe the primary as an early indicator of whether the redistricting strategy will strengthen Democrats’ performance in the upcoming federal races.