Political career
Galbraith has contributed opinion columns in relation to issues including political developments in Iraq and Afghanistan, for publications including The New York Times, The Washington Post, The Los Angeles Times, The Guardian, The Independent and The New York Review of Books. On Iraq, he has argued that "[c]ivil war and the breakup of Iraq are more likely outcomes [of the invasion of Iraq] than a successful transition to a pluralistic Western-style democracy". He has also argued that the Bush administration "has put the United States on the side of undemocratic Iraqis who are Iran's allies". On the 2009 Afghan Presidential Elections, he wrote in The New York Times that "[if] the second round of Afghanistan's presidential elections [...] is a rerun of the fraud-stained first round, it will be catastrophic for that country and the allied military mission battling the Taliban and Al Qaeda." After the election's second round was canceled, he wrote that "[t]he decision by the Independent Election Commission (IEC) to cancel the second round and declare the incumbent, Hamid Karzai, the victor concludes a process that undermined Afghanistan's nascent democracy."
Conservative New York Times columnist David Brooks called Galbraith the "smartest and most devastating" critic of President George W. Bush's policies in Iraq.
After Galbraith's interests in Iraqi oil were made public, The New York Times wrote that "[l]ike other writers for the Op-Ed page, Mr. Galbraith signed a contract that obligated him to disclose his financial interests in the subjects of his articles. Had editors been aware of Mr. Galbraith’s financial stake, the Op-Ed page would have insisted on disclosure or not published his articles." Meanwhile, The New York Review of Books wrote that "[w]e regret that we were not informed of Mr. Galbraith's financial involvements in business concerning Kurdish oil. If we had known about them, we would have wanted them to be disclosed when his articles were published." In a response, Galbraith defended his involvement in the constitutional process as an informal advisor, but apologized for failing to better disclose his interests as a commentator.
Galbraith served as chairman of the Vermont Democratic Party from 1977 to 1979.
In 1998, Galbraith briefly campaigned for the Democratic nomination for the seat in the United States House of Representatives from Massachusetts then held by retiring Representative Joseph P. Kennedy II and previously held by Tip O'Neill and John F. Kennedy.
In 2008, Galbraith told Vermont Public Radio he was considering a run for the governorship of Vermont, but later announced that he would not be running and endorsed former House Speaker Gaye Symington instead.
He is a Senior Diplomatic Fellow, and Chair of the Board of Directors of the Center for Arms Control and Non-Proliferation, the research arm of the Council for a Livable World.
On November 2, 2010, Galbraith won election to the Vermont State Senate from Windham County as a Democrat, and was reelected in 2012. in 2011, Galbraith initiated legislation to ban hydraulic fracturing ("fracking"), making Vermont the first state in the country to ban fracking. In 2014, he introduced the legislation to finance Vermont's single payer health care plan, Act 48, a plan which eventually failed to pass.
Among his Senate colleagues, he gained a reputation for speaking at length on the floor and introducing amendments to almost every bill, and he had a difficult time gaining political allies. According to the Vermont Senate Journal, Galbraith proposed amendments aiming to raise the minimum wage to $12 per hour, to ban corporate campaign contributions, to prevent wealthy persons from evading campaign finance limits, to delete a $5 million appropriation for IBM, to extend Vermont's bottle bill to non-carbonated beverages, to create a subsidized public option on the Vermont Health Connect exchange, to protect large tracts of roadless forest from development, and to return $21 million to ratepayers as a condition of the GMP-CVPS merger. Galbraith's critics said he did not adapt well to the Vermont Senate's culture and described him as "abrasive," and "arrogant", but others in the Senate praised his intelligence, clear thinking, and nonconformism. Governor Peter Shumlin described him as "incredibly articulate, bright and capable." Galbraith did not run for a third term in 2014, citing a desire to focus on his career in international diplomacy.
Galbraith announced in March 2016 that he would be a candidate for the Democratic nomination for Governor of Vermont in 2016. Galbraith ran on an "unapologetically progressive" and "unconventional" platform which included raising the minimum wage, eventually to $15 per hour; establishing universal health care or universal primary health care; and banning campaign contributions from corporations; putting a moratorium on new industrial wind turbines; and eliminating "special interest" tax breaks. Galbraith supported universal background checks for gun sales in Vermont, and called for a ban on assault weapons.
Galbraith came in third in the primary, behind Matt Dunne and the winner Sue Minter, whom Galbraith endorsed. Despite the outcome, he credited his campaign with introducing substantive policy debates, especially over single-payer health care, into the race.