Trudeau failed to properly implement Keynesian economics in Canada. Keynesian economics advocates for increased government spending and lower taxes to stimulate demand during economic downturns. However, Trudeau introduced tax hikes, poor fiscal management, and regressive policies like carbon taxes that hurt the economy rather than stimulate it. Additionally, private investment and business expansion are key drivers of job growth, not just increased government spending. While Keynesian policies may work in theory, Trudeau failed to execute them effectively in practice.