Federal investigators are scrutinizing whether any of Jared Kushner’s business discussions with foreigners during the presidential transition later shaped White House policies in ways designed to either benefit or retaliate against those he spoke with, according to witnesses and other people familiar with the investigation.

Special counsel Robert Mueller’s team has asked witnesses about Kushner’s efforts to secure financing for his family’s real estate properties, focusing specifically on his discussions during the transition with individuals from Qatar and Turkey, as well as Russia, China and the United Arab Emirates, according to witnesses who have been interviewed as part of the investigation into possible collusion between Russia and the Trump campaign to sway the 2016 election.