On November 22, a U.S. District Court in Illinois ordered the filing period shifted to a later period, for candidates for U.S. House running in Illinois primaries. The statutory period for filing petitions for primary ballot access is November 28 through December 3. But the order shifts this period to December 23-27. See this story. The reason for the shift is that no one can know for sure what the boundaries of the districts will be.

The change has no effect on the deadline for independent candidates, and the deadline for nominees of unqualified parties. Their petitions, which must contain 5,000 signatures, are due on June 25, 2012.