United States President Donald Trump has touted billions of dollars in new factories, energy projects and jobs while campaigning for Republicans in competitive races before the Nov 3 midterm elections, but several projects remain uncertain or years from delivering economic benefits, a Reuters review found.

Stop after stop, Trump has pointed to the projects as evidence that his economic policies are paying off, including an Alaska liquefied natural gas LNG pipeline, an Iowa steel mill, a Texas power plant, a Kentucky pharmaceutical project and a North Carolina quartz mine.

US presidents typically spend the final stretch before the midterms highlighting legislative victories and their economic records. Trump has gone further, dangling cash payments, federal investments and other benefits, some explicitly tied to Republican victories.