Wiebe first became widely known as the Women's President from 1988–1994 and the President and CEO from 1995-1998 of the National Farmers Union. During her term she vocally defended the role of the Canadian Wheat Board in the marketing of prairie grains.
Wiebe is currently a professor of church and society at St. Andrew's College in Saskatoon, Saskatchewan. She was once again the NDP candidate in Saskatoon—Rosetown—Biggar in the 2008 federal election, but Conservative candidate Kelly Block defeated her by just 262 votes (0.98%), Wiebe's narrowest loss to date. She was considered a potential candidate for the 2009 Saskatchewan NDP leadership convention, following Calvert's resignation on October 17, 2008.[1] Wiebe later announced she would not run for the provincial leadership and instead focus on federal politics.[2] Wiebe was re-nominated as the NDP candidate for Saskatoon—Rosetown—Biggar for the 2011 federal election.[3] Block once again defeated Wiebe, this time prevailing by 538 votes. Notably, both women increased their percentage of popular support at the expense of the Liberals and Greens.