Philip Hammond has been hit with a gloomy outlook for the UK economy, as forecasts revealed downgrades to growth ahead of Britain's divorce from the European Union.
Striking a positive note during his Autumn Budget, the Chancellor said the economy had managed to "confound those whose seek to talk it down" by creating jobs and continuing to grow.
However, Britain's fiscal watchdog revised down its predictions for the UK economy, as the nation looks set to struggle with "stubbornly flat" productivity growth and weaker business investment.
In its independent forecasts, the Office for Budget Responsibility (OBR) downgraded gross domestic product forecasts (GDP) from 2% to 1.5% for this year.
It also cut the GDP outlook from 1.6% to 1.4% in 2018, from 1.7% to 1.3% in 2019, from 1.9% to 1.3% in 2020, and from 2% to 1.5% in 2021, before expanding by 1.6% in 2022.
He said the Government would "look forwards not backwards" as the UK economy embarks "on a path to a new relationship" with the European Union that will be "full of new challenges and... new opportunities".
On the public finances, the OBR has pencilled in borrowing to be £8.4 billion lower this year at £49.9 billion compared to its forecasts in the Spring Budget.
While the OBR trimmed its deficit predictions from £40.8 billion to £39.5 billion in 2018, it expects borrowing to stand at £25.6 billion in 2022.
In the Spring Budget, the watchdog predicted borrowing would sit at £16.8 billion in 2021.
Mr Hammond added: "We took over an economy with the highest budget deficit in our peacetime history.
"Since then, thanks to the hard work of the British people that deficit has been shrinking and next year will be below 2%. But our debt is still too high and we need to get it down.
"Not for some ideological reason, but because excessive debt undermines our economic security leaving us vulnerable to shocks; because it passes the burden unfairly to the next generation, and because it cannot be right to spend more on our debt interest than we do on our police and our Armed Forces combined."
Focusing on debt, the OBR expects it to peak at 86.5% of GDP this year, before falling to 86.4% in 2018, to 86.1% in 2019; 83.1% in 2020, 79.3% in 2021, and 79.1% in 2022-23.
The move would mark the first sustained debt decline in 17 years, Mr Hammond said.