The Republican-led Senate Intelligence Committee has subpoenaed Donald Trump Jr as part of an inquiry into the Russia investigation, it has been reported.
In 2017 Trump Jr testified he was only "peripherally aware" of proposed plans for the Moscow project.
"The fact that they're subpoenaing Trump Jr is a strong signal that he declined a request to appear before the committee again," news website Axios wrote.
In an interview with Fox News' Laura Ingraham in January 2019, Trump Jr downplayed his knowledge of the discussions about a possible Trump Tower in Moscow, saying that the project was a creation of President Trump's former attorney Michael Cohen: "We don't know anything about it. Ultimately, it was Michael Cohen essentially trying to get a deal done."