By this point, the riding was an NDP stronghold and they continued to win elections by large margins, increasing their margin of victory to 12,000 votes in 1980. Shortly afterward, Prime Minister Pierre Trudeau invited Broadbent to join his cabinet, but Broadbent ultimately rejected his offer. In 1984, Broadbent held on to the seat by a margin of 2000 votes despite the landslide that the PCs won nationally. In 1986, the riding was modified to exclude the area north of Rossland Road. In 1988, Broadbent would increase his margin of victory to about 4,400 votes over the PCs.