The Short Version
The EPA did project $1.3 trillion in compliance-cost savings from rolling back greenhouse gas standards. However, the claim is misleading because the EPA's own regulatory impact analysis simultaneously projects approximately $1.5 trillion in increased fuel and maintenance costs through 2055 — more than offsetting the compliance savings. Independent analyses from RFF and ACEEE also find net costs to consumers and society. The phrase "save Americans $1.3 trillion" presents a gross figure as though it were a net benefit, omitting the larger costs documented in the same EPA analysis.