The wall
Building a wall on the US border with Mexico (and getting Mexico to pay for it) was one of Trump's flagship promises from his first campaign, though the specific parameters of the wall evolved over time, from 1,000 miles to over 500 miles.
As of January 8, 2021, 453 miles of border barriers were built under the Trump administration, just
47 of which were erected where no barriers had existed before.
Furthermore, during the campaign, Trump insisted that Americans would not pay for the wall or any new barriers his administration constructed. According to Trump, Mexico would pay for the wall, but both the former and current Mexican president have refused to do so.
Debt
Trump initially pledged to eliminate the ($19 trillion dollar) US debt in eight years. According to the latest report from the Government Accountability Office,
the federal debt was at $26.9 trillion as of September 30, 2020.
Trade deficits
As a candidate, Trump pledged to narrow America's trade deficit, especially with China. In 2019, the goods trade deficit with China fell to its lowest level since 2014. The overall US trade deficit also shrank in 2019, but it remained higher than when Trump took office.
In November 2020, the trade deficit reached its highest level since 2006.
Coal
Trump said he was going to "bring back" coal and "put the miners back to work." In 2016, the US produced more than 728 million tons of coal, according to the annual report from the Energy Information Administration. The most recent available report indicates the US produced 706 million tons of coal in 2019,
its lowest level since 1978, when there was a major strike.
Guns
At a 2016 campaign rally, Trump said, "My first day, it gets signed, okay? My first day. There's no more gun-free zones."
Not only did
he not sign any legislation banning gun-free zones on his first day in office, but this was never accomplished.
Leaving the White House
In 2015, shortly after announcing his run for President, Trump said if elected he would "rarely leave the White House because there's so much work to be done." He also criticized Obama for "all of the time [he] spent on the golf course, often flying to Hawaii in a big, fully loaded 747, to play."
And yet, Trump left the White House repeatedly while he was president, often to spend time at his Mar-a-Lago property in Florida or at his golf courses across the nation.
In 2019 alone he spent 1 in 5 days at a golf club.