The memo will likely include redactions, the source said.
The president argues he is "vindicated" in the Russia investigation by a GOP memo. Now he needs to decide whether to release the Democrat reply.
Republicans suggest State Department may have worked to influence the election, says report.
The Nunes memo was released Friday after approval from President Donald Trump.
Trump ready to release controversial Republican memo despite warnings from his FBI Director Christopher Wray.
Representative Adam Schiff said House Intelligence Committee Chairman Devin Nunes changed a controversial memo after the panel reviewed it.
Obama's former national security adviser has explained why she requested the names of Trump aides from intelligence reports.
The Intelligence Committee chairman's withdrawal doesn't fix the investigation or solve the chamber's deeper problems.
The documents are at the center of a political firestorm surrounding the investigation of possible links between President Donald Trump's campaign and Russia.
Move shows White House is a "runaway train," says former Department of Defense Chief of Staff.
Says it would take Trump administration 120 seconds to find out who leaked to the top Intelligence Committee member.
Adviser reiterates his offer to testify before the House Intelligence Committee.
Democrats were upset that Nunes made the comments to the media and then briefed Trump in the White House without informing them.
Rep. Devin Nunes said he obtained the information from a source he did not identify. Democrats said they had not been consulted about the information before the news conference.
Republican Representative Devin Nunes told reporters that if Trump's assertion were true, leaders of Congress and the chairman of its two intelligence committees should have been briefed.