Jonathan L. Jackson
Representative for Illinois, district 1 · Democrat
Born 1966
What they did most recently
The member's own cast, attached to the exact House or Senate roll call.
Ideology, measured from every vote they cast
DW-NOMINATE first dimension (Voteview, UCLA), shown against the 119th Congress House.
Every roll-call vote on file
Select any row to open that measure's file. The receipt button prints the vote.
Last 96 roll calls
Votes cast by year
Wikipedia lookups, last 30 days
How often people went and read about this member. It counts lookups and nothing else: not approval, not support, and not how important a member is.
Daily counts from the Wikimedia pageviews API, automated traffic excluded. Wikipedia counts a redirect separately from the article it points to, so these are a floor rather than a total. Our method is on the sources page.
Verified official-capacity cases
Federal cases whose public caption explicitly names this person as a United States senator or representative in an official capacity, during a term recorded in this file. The date on each line is the date of that record, not necessarily the day the case was filed. Being named in an official-capacity case is not a finding about the person, and nothing here says who won. Personal-capacity matters are excluded entirely.
No case has passed the official-capacity identity, subject-matter, and court-follow-through gates for this file. That is not a statement that no case exists. It means VoteFiles has no qualifying public record to display here.
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Voting records reproduced from the official Journals of the House and Senate (compiled by Voteview, UCLA) · each measure's file links its official government record · sources & methodology · data as of 2026-09-16