Virginia’s Republican leaders are pouring money into the race to defeat House Minority Leader Ward Armstrong (D) in November.

Gov. Bob McDonnell and the House’s leaders — Speaker Bill Howell, Majority Leader Kirk Cox and Majority Whip Bill Janis — contributed a combined $100,000 to the Southside Victory Fund to help Armstrong’s opponent, Del. Charles Poindexter (R), according to the Virginia Public Access Project, a non-partisan tracker of money in politics.

Armstrong (Henry) announced this month that he would move so that he could run for reelection, challenging Del. Charles Poindexter (Franklin) in a district that includes a large part of his old district.

During redistricting, Republicans eliminated Armstrong’s 10th District and merged it with a neighboring district held by fellow Republican Del. Don Merricks (R-Pittsylvania).

That allowed them to create a new district in Loudoun County to accommodate the outer suburb’s rapid growth. For Republicans, it had the side benefit of potentially pushing the combative Democratic leader out of the House.

But Armstrong vowed to fight for a House seat and possibly run for statewide office in 2013. He could not be reached for comment Thursday.