President Biden spent Wednesday afternoon in the key swing state of Ohio courting union workers, seeking to convince voters his policies are helping buttress the middle class as polls continue to show Americans souring on his handling of the economy.

Biden spoke to a packed crowd at Max S. Hayes High School in Cleveland to announce the final rule for implementing a program created by his $1.9 trillion coronavirus relief law to support struggling multiemployer pension plans so that union workers have more retirement security.

“Who is the backbone of this country? It’s you, the American worker,” Biden told the crowd, speaking in front of a sign that read “Jobs. Unions. Retirement Security.”