President Donald Trump has stood by claims he was wiretapped under Barack Obama, telling visiting German Chancellor Angela Merkel: “At least we have something in common, perhaps.”
US intelligence agencies under Mr Obama reportedly monitored Mrs Merkel’s phone, sparking an angry response.
But both Republican and Democratic congressional leaders have said they do not believe Mr Trump was wiretapped.
Mr Trump and Mrs Merkel have discussed key issues including Nato and trade.
Her visit had been scheduled for Tuesday but was postponed due to a snowstorm.
Mr Trump made his wire-tapping jibe in a joint press conference with Mrs Merkel. She gave a quizzical look.
He was also asked about a comment by White House press secretary Sean Spicer that the UK’s GCHQ spy agency had carried out wiretapping on Mr Trump during the US election campaign.