Donald Trump during a January 2016 campaign event awarding a $100,000 check to a veterans charity in Sioux City, Iowa. Trump’s use of his personal foundation during the campaign raised legal questions about the foundation’s activities.

Donald Trump during a January 2016 campaign event awarding a $100,000 check to a veterans charity in Sioux City, Iowa. Trump's use of his personal foundation during the campaign raised legal questions about the foundation's activities.

Donald Trump during a January 2016 campaign event awarding a $100,000 check to a veterans charity in Sioux City, Iowa. Trump’s use of his personal foundation during the campaign raised legal questions about the foundation’s activities.

Donald Trump during a January 2016 campaign event awarding a $100,000 check to a veterans charity in Sioux City, Iowa. Trump’s use of his personal foundation during the campaign raised legal questions about the foundation’s activities