Complex sentence: While BC Reform was nearly tied with the BC Liberals in opinion polling conducted in early 1995, Reform narrowly lost a key by-election in Abbotsford in May 1995, and saw its support quickly eclipsed by the BC Liberals by autumn.
Split into simpler sentences: While BC Reform was nearly tied with the BC Liberals in opinion polling conducted in early 1995, Reform narrowly lost a key by-election in Abbotsford in May 1995. The party's support in opinion polling was quickly eclipsed by the BC Liberals by autumn.