Biden press secretary Karine Jean-Pierre has been blocking national security spokesperson John Kirby from joining her at the podium at White House press briefings, people familiar with the matter tell Axios. ...

The intrigue: Jean-Pierre has long privately fumed about Kirby's role.

• Having both of them at the podium was what Biden wanted, but Jean-Pierre thought that Kirby's presence gave the impression she needed a chaperone, people familiar with her thinking told Axios.