Ms. Tennant is in a tight race with outgoing Republican Congresswoman Shelly Moore Capito for the seat. The race could be a decisive one in this year's national battle for control of the U.S. Senate.
Themed "Building Retiree Power," the ARA convention focused on income inequality and preserving Americans' right to a secure retirement.
The 2007-08 financial crisis, spurred by Wall Street's "casino capitalism," still threatens pension plans that affect 10 million workers.
Public employee pension plans are actually far more cost effective than defined contribution, the 401k-style plans fashionable in the private sector.