Eliot Spitzer absolutely had Presidential ambitions, and certainly had ambitions for other elected office for positions other than the Presidency. He resigned as governor, and likely derailed any hope for future political office.

"The investigation of Spitzer was reportedly initiated after North Fork Bank reported suspicious transactions to the Treasury Department's Financial Crimes Enforcement Network as required by the Bank Secrecy Act, which was enhanced by Patriot Act provisions, enacted to combat terrorist activity such as money-laundering."

http://en.wikipedia.org/wiki/Eliot_Spitzer_prostitution_scan...