Complex sentence: Pro-administration officials organized parades and demonstrations in favor of the tax, and although anti-sales-tax forces used procedures that stalled a vote for weeks, a three percent sales tax was approved by the end of the session.
Split into simpler sentences: Pro-administration officials organized parades and demonstrations in favor of the tax. Although anti-sales-tax forces used procedures that stalled a vote for weeks, a three percent sales tax was approved by the end of the session.