A new report says the U.S.-Iran prisoner swap also involved the Obama administration's decision to drop cases against 14 Iranian fugitives.
Ethics lawyers said an article posted on an official State Department blog violated U.S. law prohibiting the use of public office for private gain.
The Senate faces investigative inexperience and a lack of full-time staff while the House deals with ethics questions and partisanship.
President Trump called the ISS to congratulate Peggy Whitson on her record time in space, but the subject quickly turned to Mars.
Barack Obama's first public appearance since his presidency contained a few hints at what he's planning to do for his next job.