David Stewart, the head of a Pennsylvania construction business, pleaded guilty last week, on behalf of one of his businesses, for making illegal campaign contributions. The scheme involved executives at The Stewart Companies being reimbursed by the business for making contributions.

Direct corporate contributions are illegal in Pennsylvania, as are so-called straw donations.

Stewart’s company has been ordered to pay $100,000 in restitution, and Stewart has entered a first-time-offender deferral program but has not admitted any wrongdoing. Among the recipients of these contributions is U.S. Sen. Pat Toomey, who is facing a very close race for re-election this fall.