Former U.S. special counsel Robert Mueller on Wednesday disputed assertions that he had interviewed with President Donald Trump in 2017 to serve as FBI director before he was appointed to oversee the Russia investigation.

Mueller spoke at a televised hearing before the U.S. House of Representatives about his two-year investigation into Russian interference in the 2016 presidential election and any obstruction by Trump or his associates.

Trump, who regularly has blasted the investigation as a politically biased "witch hunt," has repeatedly said Mueller wanted the top job at the Federal Bureau of Investigation, which he held from 2001 to 2013, and reiterated his accusations ahead of Mueller's testimony.