First daughter and White House senior special adviser Ivanka Trump ignored a reporter’s questions concerning her father’s impeachment.
Video from the World Economic Forum at Davos, Switzerland, shows CNN reporter Jim Acosta asking for comment as Ms Trump descends a staircase.
Mr Acosta can be heard asking: “Any comment on your father’s impeachment trial? Any thoughts?”
An aide then excuses them and ushers Ms Trump through the crowd.
Trying again, Mr Acosta repeats his question, adding: “Do you think there should be witnesses?”
Ms Trump's awkward silence continues.
The video was posted on Twitter by Matt Hoye, CNN supervising producer covering the Trump White House.
Earlier in the day Mr Acosta tweeted: “As his Senate trial begins, Trump has arrived at Davos forum and once again referred to impeachment as a ‘witch hunt... a hoax... and a disgrace’.”
