[12] In the general election, Napier faced Republican incumbent Paul J. Silvester, Libertarian Louis A. Garofalo and Concerned Citizens Party candidate Joseph J.
[17] In 2010, after Newington Mayor Jeff Wright suspended his campaign for Governor of Connecticut, he decided to run for State Treasurer.
[20] After the 2001 Enron scandal, Nappier sought to recover the $15 million lost from Connecticut's pension fund, as a result of the company's hiding of billions of dollars in debt from failed deals and projects.
[21] Since the bankruptcy of Enron, Nappier has been an advocate for tighter regulation of financial institutions, and for separation between auditing and consulting firms.
[22] In 2004, Nappier and then Connecticut Attorney General Richard Blumenthal filed suit against the private equity firm Forstmann Little & Company[23] for the $120 million lost in Forstmann Little's failed investments in XO Communications Inc. and McLeodUSA Inc., two telecommunications firms that ended up filing for bankruptcy.
[24] Nappier and Bluementhal argued that the firm breached contractual obligations and fiduciary responsibilities, and violated securities law.
[30] At the annual shareholders meeting in Charlotte, North Carolina, Nappier voted against keeping the established leadership, saying that "In the interest of Bank of America's future growth and success, it's time to clean house and set the financial health of the company on a sustainable path.
"[31] She also called on the board members of American International Group to resign, citing executive bonuses after the insurance firm received $182 billion from the federal government Troubled Asset Relief Program.
[32] Nappier is a member of the boards of both the National Association of Corporate Directors and the International Foundation for Electoral Systems.