Nearly 1,400 workers were laid off Wednesday from the former Navistar truck factory in southwestern Ohio, a loss large enough to erase roughly a year of job growth in the greater Dayton area. The layoffs came three days before President Donald Trump's rally at a nearby high school and have intensified economic concerns among working-class voters. Kyle Bos, a 30-year-old United Auto Workers member and three-time Trump voter, said he now plans to canvass for Democrats before the November election, citing inflation and the layoffs. Americans increasingly blame Trump for the cost of living, with 17% approving of his handling of the issue, while Ohio's Senate race between Republican Sen. Jon Husted and former Democratic Sen. Sherrod Brown could help determine control of the chamber. Dayton has lost about half of its 90,000 factory jobs since 1990 as production shifted to Mexico and China, although Wright-Patterson Air Force Base and aerospace investment have supported an economic recovery. Roshel, a Canadian armored-vehicle manufacturer buying the plant, says it plans to protect the existing workforce and more than double employment over several years through a phased process.