This is not a lifetime commitment, nor even an absolute requirement to vote for only one party at the general election. You may also go as an observer and not vote. Primary elections, however, do require that you vote for only one party's candidates. Minor political parties do not participate in the caucus system. They may have an influence on the outcome of elections by voting on election day, but they have little influence on the selection of candidates or positions on issues.
Voting is still very important, however.
Minor party candidates do not follow this process to get on the general election ballot. Their names are placed on the ballot upon submission of an election petition bearing the names of eligible Minnesota voters by a certain date. The number of signatures required is dependent upon the office. In 2000, caucuses will be held on March 7. Watch for the location of your precinct's caucus will be announced in the newspapers the week before.