21.   The ruling came in a lawsuit by major cigarette companies seeking to have the report declared invalid.

22.   A recall petition circulated, though it was quickly declared invalid by the attorney general.

23.   Ballots that were declared invalid in a referendum on a pork promotion program are being reviewed to determine whether they can be counted, the Agriculture Department said Wednesday.

24.   But it did not suggest the election be declared invalid.

25.   But the formal turnout was so low that the referendum was declared invalid.

26.   But the wind-gauge reading was questioned, and eventually declared invalid.

27.   Defense attorneys complained on TV that they were barred from attending interrogation sessions and that any confessions should be declared invalid.

28.   Elections for mayor of the Chechen capital of Grozny were declared invalid because not enough people voted and there were voting irregularities, officials said Monday.

29.   First-round voting in September also failed to produce a winner, and an October runoff was declared invalid because of low turnout.