Donald Trump has told allies he plans to pardon his former national security adviser Michael Flynn, who had pleaded guilty to lying to the FBI during an investigation into Russian meddling in the 2016 presidential election, a source familiar with the situation said on Tuesday. The US president could still change his mind on the planned pardon, which is among a number of pardons under consideration, the source said. The news was first reported by Axios. Democrat Joe Biden defeated Mr Trump in US elections earlier this month, but Mr Trump has refused to formally concede, alleging without evidence that there was widespread voter fraud. However, Mr Trump on Monday gave the go-ahead for federal funds to start flowing to Biden so he can carry out his transition duties before his Jan. 20 inauguration. If Mr Trump does grant a reprieve to Flynn, it would be the highest-profile pardon issued by the president since he took office.