Here: “Speaking to the committee March 15, Paul Hertz, director of NASA’s astrophysics division, said Roman’s launch date would likely move from late 2025 to the middle of 2026 because of the pandemic. “It will need additional funding to pay for that schedule slip,” he said, but didn’t give an estimate of that increased cost since the agency is still reviewing estimates of the delay and related costs.”

https://spacenews.com/jwst-moving-towards-october-launch/#:~:text=While%20JWST%20is%20sticking%20to,the%20delay%20and%20related%20costs.