The Maryland gubernatorial election of 1966 was held on November 8, 1966.
 Incumbent Democratic Governor J. Millard Tawes was unable to seek a third term in office.
 In the election to succeed him, George P. Mahoney, a controversial segregationist, emerged from the Democratic primary due to splintered support for the two major candidates.
 Baltimore County Executive Spiro Agnew, who would later go on to be selected by Richard M. Nixon as his running mate in 1968, was nominated by the Republican Party as their gubernatorial candidate.
 Mahoney and Agnew squared off, along with independent candidate Hyman A. Pressman.
 Ultimately, Agnew was victorious over Mahoney, with Pressman a distant third.
 This year would be the last time that the state of Maryland elected a Republican governor until 2002.
The Nevada gubernatorial election of 1978 occurred on November 7, 1978.
 Incumbent Democratic governor Mike O'Callaghan was term-limited.
 Republican candidate Robert List was elected Governor of Nevada, defeating Democratic candidate Robert E. Rose.
The Maine gubernatorial election of 2002 took place on November 5, 2002.
 Incumbent Independent Governor Angus King was term limited, and unable to seek re-election.
 United States Congressman John Baldacci won the Democratic primary uncontested, while former State Representative Peter Cianchette emerged from the Republican primary victorious.
 Baldacci and Cianchetti squared off in the general election, joined by Jonathan Carter, the Green Party nominee, and independent State Representative John Michael.
 Ultimately, Baldacci prevailed over Cianchette to win what would be his first of two terms as governor, with Carter taking an unusually high amount of the vote for a third-party candidate.
The 1974 Maine gubernatorial election took place on November 5, 1974.
 Incumbent Democratic Governor Kenneth M. Curtis was term-limited and could not seek re-election.
 Independent candidate James B. Longley defeated Democratic Party challenger (and future Senate Majority Leader) George J. Mitchell and Republican James Erwin in a tight three-way contest.
 Longley's victory made him the first independent (non-party-affiliated) governor in Maine's history.
The 2018 Colorado gubernatorial election will take place on November 6, 2018, to elect the Governor of Colorado.
 Incumbent Democratic Governor John Hickenlooper is term-limited and cannot seek re-election to a third consecutive term.
The 1958 Maine gubernatorial election took place on September 8, 1958.
 Incumbent Democratic Governor Edmund Muskie, was term limited and seeking election to the United States Senate, thus did not run.
 Democrat Clinton Clauson, then mayor of Waterville, unexpectedly defeated Muskie's chosen Democratic candidate in the primary, and faced off against the popular previous two term Republican Governor, Horace A. Hildreth in the general election.
 Hildreth was the heavy favorite to win, however Clauson was able to narrowly defeat him, retaining the Blaine House for the Democrats.
The Nevada gubernatorial election of 1998 occurred on November 3, 1998.
 Incumbent Democratic governor Bob Miller was term-limited.
 Republican candidate Kenny Guinn defeated Democratic candidate Jan Laverty Jones to become Governor of Nevada.
The 2002 Hawaii gubernatorial election was held on November 5, 2002 to select the Governor of Hawaii.
 Incumbent Democratic Governor of Hawaii Ben Cayetano was term-limited and therefore could not run for re-election.
 Former Maui Mayor Linda Lingle, who had narrowly lost the 1998 election, was nominated once again by the Republicans while Lieutenant Governor Mazie Hirono earned the Democratic nomination in a tightly fought race.
 Lingle and Hirono duked it out in a toughly-fought campaign, with Hirono's campaign crippled by allegations of corruption within the Hawaii Democratic Party and many voters desiring a change.
 Ultimately, Lingle won out over Hirono in one of the state's closest gubernatorial elections, allowing her to become the first Republican Governor of Hawaii since 1962 and the state's first female Governor ever.
The 2010 Maine gubernatorial election took place on November 2, 2010.
 Incumbent Democratic Governor John Baldacci was term-limited and unable to seek re-election.
 Primary elections took place on June 8, 2010.
 The candidates who appeared on the November ballot were (in alphabetical order by last name): Eliot Cutler (Independent), Paul LePage (Republican), Libby Mitchell (Democrat), Shawn Moody (Independent), and Kevin Scott (Independent).
Patrick Quinlan is an American author, political activist, fundraiser, and briefly, a Green Independent candidate for Governor of Maine in the 2010 election.
 In the fall of 2009, he informed the Maine Ethics Commission that he was no longer seeking election.

Question: Which entity did the Green Independent candidate inform he was no longer seeking election in the election in which Incumbent Democratic Governor John Baldacci was term-limited?
Answer: Maine Ethics Commission