When it comes to keeping promises, Canadians know full well that politicians are not at all like Horton, the Dr. Seuss character who "meant what I said and I said what I meant: an elephant's faithful, 100 per cent."

They make many promises to win elections, but often find it impossible to deliver on them once they take office.

Justin Trudeau is no exception.

He made more than 200 promises in last fall's election campaign. After one year as prime minister, he's kept more than he's broken — but most are still in progress or yet to come. Some are open to interpretation, while still others have been recalibrated. Here's a look at the main ones:

Promises kept

A cabinet with as many women as men.

A 20.5 per cent income tax rate for Canadians earning between $45,282 and $90,563, down from 22 per cent.

A new 33 per cent tax bracket for those earning more than $200,000.

Create a new, more generous child benefit.

Restore mandatory long form census.

Minister of Families, Children and Social Development Jean-Yves Duclos looks on as Innovation, Science and Economic Development Minister Navdeep Bains announce the restoration of the long form census, November 5, 2015. (Adrian Wyld/Canadian Press)

Unmuzzle scientists.

Create an arm's length advisory board to recommend merit-based, non-partisan nominees for the Senate.

Ensure process of appointing Supreme Court justices is more transparent, inclusive and accountable to Canadians. Trudeau's only pick for the top court thus far, Malcolm Rowe, was one of five recommended by a new independent, non-partisan advisory board. The board's chair, one-time prime minister Kim Campbell, and Rowe are to appear separately to answer questions about the appointment from a Commons committee.

Withdraw Canadian fighter jets from Syria and Iraq, beef up humanitarian aid and military support to train Iraqi ground forces.

Launch a national inquiry into missing and murdered indigenous women.

Indigenous Affairs Minister Carolyn Bennett speaks during the announcement of the inquiry into Murdered and Missing Indigenous Women at the Museum of History in Gatineau, Quebec on Wednesday, Aug. 3, 2016. (Justin Tang/Canadian Press)

Create a parliamentary oversight committee on national security operations.

The first phase ($11.9 billion over two years) of an additional $60 billion over 10 years in infrastructure spending.

Scrap income splitting for couples with children.

Roll back to $5,500 the $10,000 annual limit on tax-free savings account contributions.

Restore the age of eligibility for old age security and guaranteed income supplement to 65 from 67.

Work with the provinces to enhance the Canada Pension Plan.

Provide a refundable tax benefit of up to $150 to teachers who spend their own money on school supplies.

Invest $2.6 billion over four years for First Nations education, although it is now over five years.

Restore funding cut by the Conservatives for the CBC.

Expand the youth summer jobs program.

Reopen nine Veterans Affairs offices closed by the Conservatives.

Increase financial benefits for veterans whose careers are impacted by injury.

Syrian refugees are greeted by Trudeau on their arrival from Beirut at the Toronto Pearson International Airport in Mississauga, Ontario, Canada December 11, 2015. (Mark Blinch/Reuters)

Welcome 25,000 Syrian refugees to Canada, although it took several months longer than promised and only about 15,000 were government-assisted refugees; the rest were privately sponsored.

Increase funding for student grants by 50 per cent.

Create the prime minister's youth council.

Reform employment insurance to reduce the wait time before claiming EI, cut the number of hours an individual must have worked to receive benefits.

Repeal Conservative legislation that allowed the government to revoke the citizenship of dual citizens convicted of terrorism, treason or espionage.

Promises Broken

Run deficits of less than $10 billion in each of the first three years of the mandate, still reducing the debt-to-GDP ratio each year and balancing the books in the final year. The Liberals' inaugural budget projects deficits for at least five years, totalling $113 billion, including almost $30 billion this year alone. The government hopes to lower the debt-to-GDP ratio over the course of the mandate.

Minister of Finance Bill Morneau was forced to defend a budget that contained a deficit three times what the Liberals promised during the election. (Adrian Wyld/Canadian Press)

The tax break for middle-income earners was to be "revenue neutral," paid for by hiking taxes on the wealthiest one per cent. In fact, it will cost the federal treasury $1.2 billion a year.

Reduce the small business tax rate to nine per cent from 11 per cent.

Maintain funding level for the Canadian Armed Forces. Government pushed back $3.7 billion for new equipment to 2020.

Immediately scrap the planned $44-billion purchase of F-35 stealth fighter jets, launch open and transparent competition to replace the current CF-18 fighter jets and reallocate the savings to the navy.

A Royal Canadian Air Force CF-18 Hornet flies over Iraq during Operation IMPACT on November 7, 2015. (Department of National Defence)

Immediately invest $3 billion over four years to improve home care. This promise is now tied to negotiations with the provinces and territories on a new health accord which the government hopes to have in place next year.

Cap how much can be claimed through the stock option deduction on annual gains higher than $100,000.

Trudeau's verbal promise to "restore" door-to-door home mail delivery. The government is committed only to stopping any further reduction in home delivery while it conducts a review of Canada Post's operations.

Promises in progress

Replace Canada's first-past-the-post voting system by the next federal election. An all-party committee is to report by Dec. 1 on the best alternative but a consensus may yet prove impossible to find.

Legalize marijuana. A task force is to report by Nov. 30 and the government is promising legislation next spring.

Former liberal health minister Anne McLellan will lead a nine-member task force to advise the government on how to legalize marijuana. (CBC)

Overhaul the Access to Information Act to make government open "by default."

Amend controversial anti-terrorism legislation passed by the previous Conservative government. The government has launched consultations and is in the process of creating a parliamentary oversight committee on national security.

Renew commitment to peacekeeping. The government has announced it will commit up to 600 troops and 150 police officers to UN peacekeeping missions but has yet to decide where to deploy them.

Foreign Affairs Minister Stephane Dion, left and Defence Minister Harjit Sajjan announce that Canada is ready to provide money and troops for peacekeeping missions around the world. (Jacques Boissinot/Canadian Press)

Review of criminal justice reforms undertaken by the previous Conservative government.

Ban partisan government advertising, appoint an advertising commissioner to police the ban. An advertising commissioner has not been appointed but, as an interim measure, the government has asked Advertising Standards Canada to conduct independent and public reviews of government ads and has asked the auditor general to evaluate the effectiveness of that mechanism. It is promising to eventually entrench in legislation third-party oversight of government ads.

Still to come

Reform election laws: repeal controversial elements of the Fair Elections Act, restore the independence of elections watchdogs, create an independent commission to organize leaders' debates during campaigns, limit party spending between elections.

Implement all 94 recommendations made by the Truth and Reconciliation Commission on the lingering effects of residential schools on indigenous peoples.

Re-establish lifelong disability pensions for veterans.

Cover the cost of four years of post-secondary education for every vet.

Reform the operation of Parliament, including empowering backbenchers with more free votes, a weekly prime minister's question period, more open board of internal economy meetings and an end to omnibus bills.

Create an office of counter-radicalization to deal with the phenomenon of home-grown extremists.

Under dispute

Adhere to the principles of the United Nations Declaration on the Rights of Indigenous Peoples, which states that no law or project can proceed without the "free, prior and informed consent" of indigenous people impacted by them. Some aboriginal leaders believe that confers a veto over natural resource projects. The government, which recently approved the Site C hydro dam and Pacific NorthWest LNG terminal in B.C. over aboriginal objections, says it doesn't.

Prime Minister Justin Trudeau leads Canada's premiers to a news conference during the First Ministers Meeting in Vancouver, B.C., Thursday, March. 3, 2016. (Jonathan Hayward/Canadian Press)

Collaborate with premiers. Trudeau has met twice with first ministers to craft a national strategy on climate change and is scheduled to do so again before the end of the year. But he's also infuriated some premiers by unilaterally announcing that the federal government will impose a floor price on carbon pollution — $10 per tonne starting in 2018 rising to $50 per tonne by 2022 — on provinces and territories that don't do it on their own.

He's further angered them by sticking with the previous Conservative government's unilateral decision to limit annual increases in health transfer payments to the provinces to no more than three per cent, ending the six per cent escalator that's been in place since 2004.

Restore public trust in environmental assessments of resource-based projects. While it develops new rules, the government has established an interim process imposing more stringent environmental hurdles and consultations with indigenous peoples. But the National Energy Board's review of the controversial Energy East pipeline proposal has been stalled due to complaints about NEB members meeting privately with proponents of the project.

The original NEB Energy East panel at hearings in Saint John in August. Its members have resigned and will be replaced (Brian Chisholm, CBC)

Lift the two-per-cent cap on annual First Nations program funding. Indigenous Affairs Minister Carolyn Bennett insists the cap was lifted in the government's inaugural budget, which included a "historic" investment of $8.4 billion over five years for aboriginal education, water systems, family and child services and other programs. But some First Nations chiefs are suspicious that the cap won't actually be lifted for another year.