Supporters of resurrecting a plan to run Metrorail through a tunnel under Tysons Corner are seeking a hearing with local policy-makers, an attempt to garner key political support for the venture.

The movement, organized under the banner of the Greater McLean Chamber of Commerce’s Tysonstunnel.org, is driven by the widespread wish that the planned extension of Metrorail traverse Tysons underground, instead of overhead as in the current proposal for an elevated rail.