WASHINGTON – The AFL-CIO’s new “super” political action committee won’t spend much on television ads, but will focus instead on mobilizing thousands of union and nonunion voters, officials at the labor federation said Thursday.

Labor leaders are targeting about 14,000 union work sites around the country to help turn out voters for President Obama and other labor-friendly Democrats.

The Workers’ Voice super PAC has raised about $5.4 million since it was formed last year in response to a landmark Supreme Court ruling that allows corporations and unions to spend unlimited cash in support of political candidates.

That’s a fraction of what conservative super PACs have raised with corporate donations. But while most super PACs have focused largely on television advertising, AFL-CIO leaders say they will use the cash to out-organize their GOP-leaning competitors.

The Supreme Court’s 2010 decision also frees union campaign workers to target any voters, not just those in union households. AFL-CIO Secretary-Treasurer Liz Shuler called the Workers’ Voice program a “radically different” model that would merge organized labor’s extensive phone bank and canvassing operations with the power of online social networks.