Acting governor
Farmer served as Acting Governor for 90 minutes on January 8, 2002. Following Governor Christine Todd Whitman's resignation the previous year to become head of the EPA, Farmer was one of four people to serve as acting governor for the one-year period between Whitman's resignation and Jim McGreevey's inauguration, along with three different senate presidents, Donald DiFrancesco, John O. Bennett, and Richard Codey. DiFrancesco served as acting governor for all but the last week of this period, when his term as senate president ended with the mandate of the outgoing senate on January 8, 2002, while newly elected governor Jim McGreevey would not be inaugurated before January 15, 2002.
The state did not have the position of lieutenant governor until 2010, and succession rules specified that the next in line for governor after the Senate President and the Speaker of the Assembly, which both became vacant on January 8, would be the Attorney General until the next Senate President could be sworn in or until an Acting Senate President could be elected. This automatically made Farmer Acting Governor. Farmer served as Acting Governor for 90 minutes until Republican Senator John O. Bennett and Democratic Senator Richard Codey were duly elected and sworn in as co-presidents of the senate, as the Senate had been evenly split between the two parties. They agreed to evenly divide the remaining week in the gubernatorial term, with Bennett serving from January 8, 2002, to January 12, 2002; and Codey serving from January 12, 2002, to January 15, 2002.
As a result, the state had five different people serving as governor during a period of eight days: DiFrancesco, Farmer, Bennett, Codey, and McGreevey. In 2018, political journalist David Wildstein speculated that, as Robert E. Littell served as acting president of the senate until Bennett and Codey assumed the role, it's possible that "maybe" Littell assumed the governorship for "a few minutes" as well. However, Littell is not included on a list of governors of the state published by the National Governors Association.