A guide to the Illinois primary election, including the key dates, where to vote — and the highest-profile issues

On June 28, Illinois voters will select their party nominees for every statewide office. Voters also can cast ballots for one U.S. Senate seat, two seats on the Illinois Supreme Court, all 17 of Illinois’ representatives in Congress, every state senator and representative in the General Assembly, and scores of county and judicial offices. These primary elections set the stage for the general election on Nov. 8.