When I got to Downing Street at 7 am sharp on Monday, a brown-and-white domestic shorthair cat was standing quietly by the black door of No 10, watching a forest of cameras with indifference.

As UK Prime Minister Keir Starmer announced his resignation amid mounting political turmoil, once again a "cabinet member" gained attention; one who now awaits the 7th PM in 10…

Downing Street has become known for its revolving door of prime ministers, but one resident remains a constant: the U.K.’s longtime chief mouser.