Last fall's initiative campaigns in Colorado saw an extraordinary change in the ballot at the last minute. Labor unions agreed to withdraw from the ballot a package of initiatives that targeted businesses in exchange for a promise by business groups to contribute to a labor effort to defeat three business-backed initiatives. The four labor-backed measures technically remained on the ballot, but under Colorado law, without the support of their labor sponsors, the initiatives were a dead letter. The votes cast on those initiatives didn't count.

To some, it looked like business groups were bribing the labor unions to pull the measures off the ballot. So two Republican lawmakers introduced a bill that would make it a misdemeanor to withdraw a ballot initiative in exchange for money or any promise of value. The bill was defeated in committee last week on a party line vote, the Rocky Mountain News reports.

Your blogger is spending election day in Colorado, following results of the 18 measures on the state ballot here. I've also been showing around 10 foreign visitors -- academics, journalists, activists -- who study, write about or are involved in the initiative and referendum process in other countries.

Colorado is a crucial swing state in the presidential campaign. John McCain is even campaigning on election day here, holding a rally in Grand Junction, on the western side of the state. But it's also been the site of a bitter business vs. labor battle, with both groups qualifying multiple measures for the ballot. Four weeks ago, however, some business groups and labor unions negotiated a limited peace. Business groups agreed to abandon support for thier measures and even campaign against three of the business-backed measures--most notably Measure 47, an initiative to make Colorado a "Right to Work" state. In return, labor agreed to "withdraw" four measures. But here's the interesting wrinkle.