Democratic candidate J.D. Scholten of Sioux City says Vermont Sen. Bernie Sanders is coming to Iowa's 4th Congressional District to support his campaign to unseat U.S. Rep. Steve King.

Sanders, an independent who campaigned for president in the 2016 Democratic Party caucuses in Iowa, will make stops Oct. 20 in Sioux City and Oct. 21 in Fort Dodge and Ames, Scholten confirmed Saturday. He announced the visit Friday night at a dinner sponsored by the Woodbury County Democratic Party.

Scholten has been barnstorming the 4th District in a Winnebago RV in an effort to drum up support to defeat King, a Republican from Kiron serving his eighth term in the U.S. House. Scholten has attracted national attention because of his ambitious effort, but political analysts and GOP officials say King remains a favorite for re-election in November.

The 4th District covers 39 counties in northwest and north-central Iowa.