Critics have described the arrangement as unusual, questioning why Kushner would attempt to make contact with Russian Federation while avoiding detection by United States intelligence and suggesting his actions could have made Kushner vulnerable to manipulation.

The idea of a permanent back channel was never discussed, according to the source. "I would not be concerned about it". National security adviser H.R. McMaster told reporters on Saturday that so-called back-channeling was not unusual.

"It's both normal, in my opinion, and acceptable", Kelly said.

Rep. Adam Schiff (D-Calif.), the ranking member of the House intelligence committee, told ABC's "This Week" he fully expects Kushner to testify before the committee.

The official said the two share a "healthy understanding that there's attention on you when you're at this level", adding that they are "unfazed" by the scrutiny of the past week.

The sense among Kushner's allies, Garrett reports, is that Mr. Trump considers the best part of his first trip overseas the three parts that Kushner structured: the visits to Saudi Arabia, Israel and Rome.

The latest reports hit close to the Oval Office, alleging that Trump's son-in-law and senior adviser Jared Kushner proposed secret back-channel communications with Russian Federation during the presidential transition. Trump fired Comey after allegedly asking him to drop the probe into former National Security Adviser Michael Flynn and his close ties to the Kremlin.

Jason Miller, the Trump campaign's senior communications adviser, was slated to serve as communications director in the White House, but he stepped aside a few weeks before Inauguration Day, saying he wanted to spend more time with his family.

A Republican consultant, Dubke joined the White House team in February after campaign aide Jason Miller - Trump's original choice for communications director - withdrew from consideration. In an interview with French newspaper Le Figaro, Russian President Vladimir Putin echoed Trump, calling allegations of Russian meddling in the election "fiction" and that they were invented by the Democrats in order to explain their loss.

Mr Mueller is now overseeing the Russian Federation investigation for the administration. The Senate and House Intelligence committees are also leading their own investigations, but not with an eye to bringing criminal charges.

In the halcyon first days of his administration, Trump believed there was no challenge too confounding, no conflict too intractable for his son-in-law to tackle. "We're chasing our tails as a nation when it comes to the Russians", Senator Lindsey Graham told CNN. "In terms of achievement, I think I'd give myself an A. Because I think I've done great things, but I don't think I have - I and my people, I don't think we've explained it well enough to the American public".