It quickly emerged that there was an extensive campaign to discourage Liberal supporters.

We've had quite an extensive psychological campaign going on for quite some time.

Despite an extensive campaign in 2007 he was unseated by a significant margin.

An extensive campaign was launched in 2008 to promote the label.

If we'd had a normal process, you would have seen a much more extensive public campaign.

After a number of protests and an extensive public campaign, the city passed its first fair housing ordinance in 1963.

Some groups said it was the most extensive campaign they had ever waged for a presidential race.

Twice in the last year he had tried to convince his father, the king, to mount an extensive campaign to win these lands.

The next few years included an extensive campaign to make the Internet version of the paper profitable.

The reserve has been the site of an extensive replanting campaign since 1989.