Maryland Gov. Martin O'Malley (left) and state Comptroller Peter V.R. Franchot (right) are among Maryland politicians who have received large campaign contributions from Jeffrey E. Thompson and his extensive network of businesses and business associates. (Barbara L. Salisbury/The Washington Times)

Maryland Gov. Martin O'Malley (left) and state Comptroller Peter V.R. Franchot (right) are among Maryland politicians who have received large campaign contributions from Jeffrey E. Thompson and his extensive network of businesses and business associates. (Barbara L. Salisbury/The Washington Times)