Fairfax County Board of Supervisors Chairman Gerald Connolly received $7,000 in campaign contributions over the past three years from one of the two major contractors for Dulles rail, according to the Virginia Public Access Project.

The most recent $3,000 donation from Boise-based Washington Group International came two months before the board’s scheduled June 18 vote on whether to approve $400 million of the $2.6 billion needed for the first half of the extension of Metrorail to Dulles.