PHILADELPHIA (CBS) — Jury selection will start Monday for the federal trial of prominent Philadelphia labor leader John Dougherty, as well as city councilman Bobby Henon.

It’s been three years since the pair was indicted on more than 100 counts. That indictment said the IBEW leader allegedly gave Henon benefits in what federal investigators say was an attempt to influence Henon as a councilman.

This is the first of two trials for Dougherty, who is also facing allegations of embezzlement. He and five other union leaders are accused in the scheme, which involved more than $600,000.

Dougherty previously pleaded not guilty.