Republican Sen. Lindsay Graham, a close ally of Donald Trump, called for more sanctions on Russia and criticized presidential adviser Jared Kushner's statements downplaying the significance of that country's interference in the 2016 election.

"I like Jared a lot, but he's leaving out a big detail," Graham said on the CBS show "Face the Nation," noting that Russia hacked into the emails of Democratic candidate Hillary Clinton's campaign. "Can you imagine what we would be saying if the Russians or the Iranians hacked into the presidential team of the Republican Party?"

Kushner, who is Trump's son-in-law, characterized the Russians' actions at an April 23 event as trying to "buy some Facebook ads to sow discontent." He said that the investigations that followed had "had a much harsher impact" on U.S democracy.