became

In 2016, Mr Trump became the first major-party presidential nominee since Richard Nixon in 1972 to decline to publicly release his tax returns while campaigning for office. At the time, he said he would do so after an Internal Revenue Service audit had concluded.

However, on Tuesday Democrats on the panel said that Mr Trump was not actually under an audit in 2016, and that the Internal Revenue Service did not begin their official audit until 2019.