Question:
The Smashing Pumpkins (or Smashing Pumpkins) are an American alternative rock band from Chicago, Illinois. Formed in 1988 by frontman Billy Corgan (lead vocals, guitar) and James Iha (guitar), the band included D'arcy Wretzky (bass guitar) and Jimmy Chamberlin (drums) in its original incarnation. It has undergone many line-up changes over the course of its existence, with the current lineup being Corgan, Chamberlin, Iha and guitarist Jeff Schroeder. Disavowing the punk rock roots of many of their alt-rock contemporaries, they have a diverse, densely layered, and guitar-heavy sound, containing elements of gothic rock, heavy metal, dream pop, psychedelic rock,progressive rock, shoegazing, and electronica in later recordings.
After the breakup of his gothic rock band the Marked, singer and guitarist Billy Corgan left St. Petersburg, Florida, to return to his native city of Chicago, where he took a job in a record store and formed the idea of a new band to be called the Smashing Pumpkins. While working there, he met guitarist James Iha. Adorning themselves with paisley and other psychedelic trappings, the two began writing songs together (with the aid of a drum machine) that were heavily influenced by The Cure and New Order. The duo performed live for the first time on July 9, 1988 at the Polish bar Chicago 21. This performance included only Corgan on bass and Iha on guitar with a drum machine. Shortly thereafter, Corgan met D'arcy Wretzky after a show by the Dan Reed Network where they argued the merits of the band. After finding out Wretzky played bass guitar, Corgan recruited her into the lineup and the now-trio played a show at the Avalon Nightclub. After this show, Cabaret Metro owner Joe Shanahan agreed to book the band on the condition that they replace the drum machine with a live drummer.  Jazz drummer Jimmy Chamberlin was recommended by a friend of Corgan's. Chamberlin knew little of alternative music and immediately changed the sound of the nascent band. As Corgan recalled of the period, "We were completely into the sad-rock, Cure kind of thing. It took about two or three practices before I realized that the power in his playing was something that enabled us to rock harder than we could ever have imagined." On October 5, 1988, the complete band took the stage for the first time at the Cabaret Metro.  In 1989 the Smashing Pumpkins made their first appearance on record with the compilation album Light Into Dark, which featured several Chicago alternative bands. The group released its first single, "I Am One", in 1990 on local Chicago label Limited Potential. The single sold out and they released a follow-up, "Tristessa", on Sub Pop, after which they signed to Caroline Records. The band recorded their 1991 debut studio album Gish with producer Butch Vig at his Smart Studios in Madison, Wisconsin for $20,000. In order to gain the consistency he desired, Corgan often played all instruments excluding drums, which created tension in the band. The music fused heavy metal guitars, psychedelia, and dream pop, garnering them comparisons to Jane's Addiction. Gish became a minor success, with the single "Rhinoceros" receiving some airplay on modern rock radio. After releasing the Lull EP in October 1991 on Caroline Records, the band formally signed with Virgin Records, which was affiliated with Caroline. The band supported the album with a tour that included opening for bands such as the Red Hot Chili Peppers, Jane's Addiction, and Guns N' Roses. During the tour, Iha and Wretzky went through a messy breakup, Chamberlin became addicted to narcotics and alcohol, and Corgan entered a deep depression, writing some songs for the upcoming album in the parking garage where he lived at the time.
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how well did this single perform?

Answer:
The single sold out and they released a follow-up, "Tristessa",

Answer the question at the end by quoting:

Cronin was born in Cardross, Dunbartonshire, Scotland, the only child of a Protestant mother, Jessie Cronin (nee Montgomerie), and a Catholic father, Patrick Cronin. Cronin often wrote of young men from similarly mixed backgrounds. His paternal grandparents had emigrated from County Armagh, Ireland, and become glass and china merchants in Alexandria. Owen Cronin, his grandfather, had had his surname changed from Cronague in 1870.
The Citadel (1937), a tale of a mining company doctor's struggle to balance scientific integrity with social obligations, helped to incite the establishment of the National Health Service (NHS) in the United Kingdom by exposing the inequity and incompetence of medical practice at the time. In the novel Cronin advocated a free public health service in order to defeat the wiles of those doctors who "raised guinea-snatching and the bamboozling of patients to an art form." Dr Cronin and Aneurin Bevan had both worked at the Tredegar Cottage Hospital in Wales, which served as one of the bases for the NHS. The author quickly made enemies in the medical profession, and there was a concerted effort by one group of specialists to get The Citadel banned. Cronin's novel, which was the highest-selling book ever published by Victor Gollancz, informed the public about corruption within the medical system, planting a seed that eventually led to reform. Not only were the author's pioneering ideas instrumental in the creation of the NHS, but the historian Raphael Samuel asserted in 1995 that the popularity of Cronin's novels played a substantial role in the Labour Party's landslide victory in 1945.  By contrast, according to one of Cronin's biographers, Alan Davies, the book's reception was mixed. A few of the more vociferous medical practitioners of the day took exception to one of its many messages: that a few well-heeled doctors in fashionable practices were ripping off their equally well-off patients. Some pointed to the lack of balance between criticism and praise for hard-working doctors. The majority accepted it for what it was, a topical novel. The press attempted to incite passions within the profession in an attempt to sell copy, while Victor Gollancz followed suit in an attempt to promote the book, all overlooking the fact that it was a work of fiction, not a scientific piece of research, and not autobiographical.  In the United States The Citadel won the National Book Award, Favorite Fiction of 1937, voted by members of the American Booksellers Association. According to a Gallup poll conducted in 1939, The Citadel was voted the most interesting book readers had ever read.

was he involved in politics