The Post reporter confronted both O'Keefe and Philipps outside the Project Veritas office on Monday, but both refused to confirm whether Phillips works for the group.
O'Keefe released an unrelated video that he said exposed liberal bias at the newspaper hours after the Post story was initially published.
A reporter confronts Phillips about her Roy Moore story. And then Post researcher Alice Crites found a GoFundMe page posted earlier this year by someone named Jaime Phillips seeking donations to fund a move to NY after accepting "a job to work in the conservative media movement to combat the lies and deceipt [sic] of the liberal MSM".
Phillips later met with McCrummen, who was accompanied by Washington Post videographers, and claimed she wanted Moore "to be completely taken out of the race".
The woman, Jamie Phillips, first approached the newspaper after it broke a story about Leigh Corfman, one of the women who have accused Moore of sexually assaulting them when they were in their teens.
Phillips responded by saying that she was going to take a job with the Daily Caller last summer but it "ended up falling through". Phillips told Reinhard, "I'd rather go to another paper than talk to you again".
"We always honor "off-the-record" agreements when they're entered into in good faith", said Martin Baron, The Post's executive editor.
'But this so-called off-the-record conversation was the essence of a scheme to deceive and embarrass us.
Phillips admitted she had created the post and said it was for a job with the Daily Caller that had since fallen through. The intent by Project Veritas clearly was to publicize the conversation if we fell for the trap.
As part of its reporting, the newspaper cited a GoFundMe fundraising page that bears the name Jaime Phillips of Atlanta.
'Because of our customary journalistic rigor, we weren't fooled, and we can't honor an "off-the-record" agreement that was solicited in maliciously bad faith'.
Regardless of his success, O'Keefe has viewers in the highest offices; President Donald Trump in June posted two videos from O'Keefe's "American Pravda" series. His supporters have parroted that claim, and a fake request from a man who said he was "Bernie Bernstein" and claimed to be a Post reporter who would pay women thousands of dollars to make damaging remarks about Moore made its way to Alabama voicemails. But it wasn't just reporters and journalists having fun at O'Keefe's expense.
In the past, O'Keefe has carried out "sting" operations against a variety of organizations, including NPR in 2011.