The U.S. budget deficit rose last year to 3.9% of GDP, the largest deficit since 2012 wsj.com/articles/u-s-g…
Per the Treasury Department, revenues and spending were both lower as a share of GDP in FY 2018, but revenues fell more, making the deficit-increase worse 
FY 2018 revenues were lower than the White House estimated in its February budget, but spending was even lower than the White House had projected, resulting in a budget deficit that was slightly smaller than forecast.
It's unusual to see deficits rising in this manner outside of a recession
Revenues are barely higher than a year ago, despite an economy growing around 5% faster than a year ago (in nominal terms)
