https://www.theatlantic.com/business/archive/2017/03/donald-trump-conflicts-of-interests/508382/
A semi-comprehensive list of the business concerns that may influence the president during his time in office
[...]
That Property in Azerbaijan
That Trump Tower Penthouse
That Resort in the Dominican Republic
That Chinese Trademark
That Meeting at Mar-a-Lago
That Defense Department Trump Tower Rental
That Red Cross Ball
That D.C. Labor Dispute
That Estate in Palm Beach
Those Expansion Plans
That Hotel in Vancouver
That Reality-Television Show
That Pipeline
Those HUD Grants
That Golf Course in Aberdeen
That Other Billionaire New York Real-Estate Developer
Those Indonesian Politicians
That Emirati Businessman
That Virginia Vineyard
That Las Vegas Labor Dispute
That Kuwaiti Event
Those Certificates of Divestiture
That Carrier Deal
That Blind-Trust Issue
Those Fannie and Freddie Investments
That Phone Call With Taiwan
That Deutsche Bank Debt
That Secret Service Detail
That Property in Georgia (the Country)
That Phone Call With Erdogan
That Hotel in Washington, D.C.
That Argentinian Office Building
Those Companies in Saudi Arabia
That British Wind Farm
Those Indian Business Partners
That Envoy From the Philippines
[...]
(This article is much too long to repost; each item listed above is described in detail.)