A political action committee largely funded by conservative Lake Forest billionaire Richard Uihlein dumped at least $526,580 into five Chicago-area congressional races last month, records show.

Democratic U.S. Rep. Bill Foster of Naperville believes the private ownership and sale of military-style weapons like those used in several mass shootings, including this summer in Highland Park, should be outlawed.

Democratic U.S. Rep. Bill Foster of Naperville outraised and outspent Republican challenger Catalina Lauf of Woodstock during the year’s third quarter, newly released documents show.

Democratic Party leaders wasted no time going after newly minted Republican congressional nominee Catalina Lauf of Woodstock on Wednesday.

The Republican race to face Democratic U.S. Rep. Bill Foster of Naperville for Illinois' 11th Congressional District seat could be close.

The Republican race to face Democratic U.S. Rep. Bill Foster of Naperville for Illinois’ 11th Congressional District seat could be close.

Most of the Republican candidates for Illinois’ 11th Congressional District seat entered the last three weeks of the primary race strapped for campaign cash, records show.

Republicans running for Illinois’ 11th Congressional District seat expressed varied stances on immigration policy reform and what to do about people already in the country illegally. One said making English the national language would be a key step; several favored funding a wall

Three Republican candidates in Illinois’ 11th Congressional District believe the global climate is changing and that humanity contributes to the problem -- but two others expressed doubts.