White House spokeswoman Jen Psaki AP By Friday afternoon (Saturday AEDT), White House press secretary Jen Psaki briefed journalists that Biden would be staying at Camp David for the weekend (instead of going home to Delaware) because it “is fully equipped to have engagements of all sorts, including with his national security team or European counterparts”. And then there was the grim assessment of National Security Adviser Jake Sullivan, who appeared at the daily White House briefing to explain that there was a “credible prospect” that a military action could happen before the conclusion of the Winter Olympics on February 20.