The cat has seen six government leaders arrive and depart, greeted world leaders and royalty at the iconic black door of No 10, and is soon set to become the most enduring uninterrupted resident since Pitt the Younger.
While the landscape of British politics has changed dramatically over the last 15 years, the feline has remained a reassuring steady presence. His enduring appeal - the kind that many politicians would desire - is now featured in a upcoming documentary series exploring the country's love for cats.
"The cat is definitely the character to encounter at No 10," commented one political insider, adding that he "has the freedom of the residence."
The tabby, whose formal designation is Head Cat of the Government at the Prime Minister's residence, was adopted from an rescue center to tackle a rodent issue. His journey from homeless cat in Wandsworth to government inhabitant represents a true rags to riches story that surpasses many political life stories.
When strains ran high during the coalition government, former leader the ex-PM was keen to dispel any suggestions of dislike between him and the country's new beloved cat. "This rumor is I dislike the cat - I do," he announced during one parliamentary session.
Now a more recognized presence, the cat appears completely accustomed to the attention. Often seen on broadcast TV lingering calmly by the front door, his relaxed demeanor in front of audiences has become rather problematic for the Downing Street groundskeeper - he frequently visits the front garden to do his business.
His government description details the 18-year-old cat as spending his time welcoming visitors, checking protection defenses, and testing historical pieces for sleeping quality. His day-to-day responsibilities include considering solutions to the mouse occupancy in the residence.
While the cat is the first to hold this specific title, cats have been welcomed in the halls of power for at minimum a hundred years. "Consistency is an vital part of Larry's appeal," explained one academic who has studied people-pet connections.
Larry has an acute sense of diplomatic occasion. "The moment something occurs on the road, especially an formal visit, like clockwork, he'll be outside the main," remarked a Number 10 insider. "He loves the red carpet."
Ex- US leader the former president and Ukrainian President Volodymyr Zelenskyy are among the international leaders he has impressed. However, not officials were equally fond.
"The former PM notoriously disliked him because she was a canine lover," explained one camera person who has witnessed several politicians attempting, and unsuccessfully, to pet the cat.
When not treading the pavements, his frequent resting places include the office equipment and desk organizers, but his favorite spots are on the ledges on either side of the entrance.
Larry's appeal with the public remains undeniable. There are multiple online profiles devoted to the nation's top cat, including one with more than 868,000 followers. He also gets fan mail, toys, and treats from across the world and has lately been included in a book about government animals.
As top feline, he inevitably receives his share of complaints. One political commentator recently described him as "excessively overweight and excessively lazy to really perform his job," claiming him of being "welfare dependent."
In reply, sources close to Larry have issued a stinging rebuke. They explain that Larry is not at all publicly funded, with Downing Street staff voluntarily paying his expenses.
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