Ryan’s comments come as Director of National Intelligence James Clapper testified before a Senate committee on cyber threats.
On Wednesday President-elect Donald Trump voiced doubts that Russian hackers attempted to influence the U.S. election on his behalf, saying WikiLeaks had denied Moscow was behind documents it made public during the campaign.
Trump, writing on Twitter, continued to raise questions about the findings by U.S. intelligence agencies that Russia was behind a series of leaks that embarrassed Democratic candidate Hillary Clinton’s campaign before the Nov. 8 vote.
Documents stolen from the Democratic National Committee and John Podesta, Clinton’s campaign manager, were leaked to the media in advance of the election. One email showed the Clinton campaign received a question in advance of a town hall forum.
President Barack Obama last month ordered an investigation into malicious cyber activity and foreign intervention in the 2016 presidential election before he leaves office on Jan. 20. Earnest said the intelligence community will meet the deadline with ample time to spare.
Separately, five Democratic U.S. senators introduced legislation urging the creation of an independent, nonpartisan commission to investigate any Russian interference in the election. Several lawmakers, including a few of Trump’s fellow Republicans, have backed calls for an investigation.