"The President must be free to engage in discussions with foreign leaders without fear that those communications will be disclosed and used as fodder for partisan political purposes", White House counsel Pat Cipollone (pictured above, left) wrote to the chairmen of the House Committees on Intelligence, Foreign Affairs and Oversight.
In one letter to Secretary of State Mike Pompeo, the three lawmakers said they wanted to know whether any Trump-Putin communications had led to the "reconsideration, modification, or implementation" of any aspect of American foreign policy.
But Lowell said Kushner was not violating federal law requiring official communications to be preserved because he takes screenshots of his messages and then sends them to his White House email account, Cummings wrote.
Cummings wrote that when asked whether Kushner ever used WhatsApp to discuss classified information, Lowell replied, "That's above my pay grade".
The same goes for the House Judiciary Committee whose chairman, Jerrold Nadler of NY, launched a wide-ranging probe earlier this month into allegations of obstruction of justice and abuse of power by the president.
After the White House failed to respond to Cummings' document and briefing requests in December, Cummings added in his letter, the committee gathered information that raised "more concerns" about the personal email use of Kushner and other White House officials.
A White House spokesperson acknowledged receiving Cummings's letter Thursday and said the chairman's requests would be reviewed.
Lowell responded Thursday to Cummings' letter, which he said is "not completely accurate about what was said".More news: Trump says the US should recognize Israel's sovereignty over Golan Heights
Cummings said he and Rep. Trey Gowdy, the committee's Republican chairman at the time, met with Lowell, the personal lawyer for Kushner and Ivanka, in December 2018.
"I did not specify who they were", Lowell said. He said Kushner has "numerous friends and contacts abroad" and insisted that he follows "protocols".
In an interview with ABC News a year ago, Ivanka Trump defended her use of a private email account, saying: "All of my emails are stored and preserved". He said his comments to the committee involved Ivanka's email use before September 2017. Now, he said, she "always" forwards emails to her official account.
"The White House has received Chairman Cummings' letter of March 21st".
The revelations are particularly embarrassing for President Trump, who during the 2016 campaign called for the jailing of Hillary Clinton over her own use of a secret email account to exchange top-secret information.
Cummings' reference to Kushner's WhatsApp messages comes in the wake of revelations last month that President Donald Trump intervened on behalf of his son-in-law and senior White House adviser to demand top-secret security clearance for Kushner against the recommendations of the Federal Bureau of Investigation.
Section 2209 of the statue stipulates White House officials are required to forward a "complete copy" of "official business conducted using non-official electronic messaging accounts" to "an official electronic messaging account of the President, Vice President, or covered employee" no later than 20 days after the creation of the communication.
But White House counsel argues that Democrats are making an overly broad request for "detailed information related to the President's meetings and telephone calls with Russian president Vladimir Putin", in addition to "confidential communications" between the president and top advisers.