See this AP report. The article apparently incorrectly indicates that a 30 day limit will kick in for the D.C. primary. Because it is a non-binding primary with no delegates as stake, that appears to be wrong. That means the next limit kicks in Dec. 20 for Iowa, unless the Supreme Court issues its opinion before then and strikes down one or more of the rules governed by the 30 day limit. The opinion could come tomorrow, Wednesday, or Monday. Otherwise, unless the Court interrupts its recess, it won’t come before January 12.