The U.S. special counsel investigating possible ties between the Donald Trump campaign and Russia in last year’s election is examining a broad range of transactions involving Trump’s businesses as well as those of his associates, according to a person familiar with the probe.

The president told the New York Times on Wednesday that any digging into matters beyond Russia would be out of bounds. Trump’s businesses have involved Russians for years, making the boundaries fuzzy so Special Counsel Robert Mueller appears to be taking a wide-angle approach to his two-month-old probe.

FBI investigators and others are looking at Russian purchases of apartments in Trump buildings, Trump’s involvement in a controversial SoHo development with Russian associates, the 2013 Miss Universe pageant in Moscow and Trump’s sale of a Florida mansion to a Russian oligarch in 2008, the person said.