The U.S. economy grew at a solid 3.2% annual rate in the first three months of the year (Q1 2019), a far better outcome than expected, overcoming a host of headwinds including global weakness, rising trade tensions and a partial government shutdown.

The advance in the gross domestic product (GDP), the broadest measure of economic health, marks an acceleration from a 2.2% gain in the previous October-December period, the U.S. Commerce Department reported Friday. However, about half the gain reflected two factors not expected to last — a big jump stockpiling by businesses and a sharp contraction in the trade deficit.

Still, the GDP gain surpassed the 3% bar set by President Donald Trump as evidence his economic program is working. Trump is counting on a strong economy as he campaigns for re-election.

It was the strongest Q1 growth rate since 2015. In recent years, GDP has been exceptionally weak in Q1. There had been fears growth could dip below 1% this year due to a variety of adverse factors such as the December stock market nosedive, rising weakness in key economies overseas, the U.S. trade war with China and a 35-day partial government shutdown that ended in January.

But the economy shrugged off those concerns, helped by an announcement in early January from the Federal Reserve that after raising rates four times last year, it was declaring a pause on further rate hikes. That spurred a stock market rebound by easing concerns that the central bank might overdo its credit tightening and send the country into a recession.

Still, economists believe the current April-June quarter will not match Q1’s performance. Many are looking for GDP growth to slow to around 2% in the current quarter.

In Q1, inventory rebuilding added 0.7 percentage point to growth, while a falling trade deficit boosted growth by a full percentage point. Analysts think both of those factors will reverse in the current quarter.

Consumer spending, which accounts for 70% of economic activity, slowed to growth at a rate of just 1.2% in Q1. In particular, spending on durable goods fell at a rate of 5.3%, the biggest decline in a decade, led by a sharp drop in light truck sales.

Government spending was up 2.4% as a big 3.9% gain in state and local spending, reflecting increases in highway construction, offset a flat performance for the federal government. The government estimated that the 35-day partial federal shutdown trimmed 0.3 percentage point from growth in Q1 after trimming fourth quarter growth by 0.1 percentage point.

For the year, economists believe GDP will expand 2.4%, down from last year’s 2.9% gain, as the boost from the 2017 tax cuts and increased government spending over the past two years start to fade.

The consensus view of private forecasters is well below expectations of the Trump administration which contends that its economic policies have broken a decade-long period when GDP gains averaged 2.2% annually. The administration is predicting growth will top 3% in coming years.

There are factors that could help lift growth in coming quarters. The global economy appears on better footing, given improvements in such major economies as China, and a trade war between the world’s two largest economies that appears closer to being resolved than it did at the start of the year.

Mark Zandi, chief economist at Moody’s Analytics, said he expects growth for this year to be around 2.2%, close to the average for the past 10 years.

“We got a temporary boost to growth last year because of the tax cuts but that money has been spent so we are back to the kind of growth we have had,” Zandi said. “I think we are back to the 2% world we have been in since the recession ended.”

The current recovery from the Great Recession of 2007-2009 is currently the second longest in history and will become the longest if it lasts past June.

But it has also been the slowest in the post-World War II period, a development economists attribute to slower growth in the labour force and weak gains in productivity.