US warns about foreign efforts to sway American voters

U.S. intelligence is warning of threats to the election infrastructure and the midterm elections from foreign countries like China and Russia.

While officials said they've not identified any credible threats to election infrastructure in the U.S., the latest intelligence warning comes amid the peak of a midterm campaign in which a rising number of candidates and voters openly express a lack of confidence in the nation's democratic processes.

Foreign countries have long sought to sway public opinion in America, perhaps most notably in a covert Russian campaign that used social media to sow discord on hot-button social issues ahead of the 2016 presidential election. The U.S. government has been on high alert since, warning about efforts by Russia, China and Iran to meddle in American politics and shape how voters think.