Political history is always complicated; below are the main sources I’ve used for the politics episodes set in the 1820’s and 1830’s. You can always find plenty more, depending on your particular interests. Hopefully these are a useful starting point.
https://www.alistairlexden.org.uk/news/hanoverian-succession-and-downfall-tory-party-tercentenary-essay
http://www.victorianweb.org/history/emancipation2.html
https://history.blog.gov.uk/2012/01/01/the-institution-of-prime-minister/
https://www.historyofparliamentonline.org/periods/hanoverians/ultra-tories-and-fall-wellington-government-1830
https://deepblue.lib.umich.edu/bitstream/handle/2027.42/50994/220.pdf?sequence=1&isAllowed=y
http://www.irishidentity.com/stories/emancipation.htm
Napier, C “The War in Syria Vol 1” https://www.gutenberg.org/files/53498/53498-h/53498-h.htm
Best, Geoffrey. “The Scottish Victorian City.” Victorian Studies, vol. 11, no. 3, 1968, pp. 329–358. JSTOR,
Fraser, Derek. “Politics and the Victorian City.” Urban History Yearbook, [6], 1979, pp. 32–45.
Morris, J. “Victorian Values in Scotland and England” https://www.thebritishacademy.ac.uk/sites/default/files/78p031.pdf
R.A. Schweitzer BRITISH CATHOLIC EMANCIPATION MOBILIZATION, PROTOTYPE OF REFORM? University of Michigan December 1980
O’Ferrall, Fergus. “’The Only Lever . . .’? The Catholic Priest in Irish Politics 1823-29.” Studies: An Irish Quarterly Review, vol. 70, no. 280, 1981, pp. 308–324
Moriarty, Thomas F. “The Irish American Response to Catholic Emancipation.” The Catholic Historical Review, vol. 66, no. 3, 1980, pp. 353–373
Melissa Score, review of The Dawn of the Cheap Press in Victorian Britain: the End of the ‘Taxes on Knowledge’, 1849-1869https://reviews.history.ac.uk/review/1675
JENKINS, BRIAN. Era of Emancipation: British Government of Ireland, 1812-1830. McGill-Queen’s University Press, 1988
Lingelbach, Anna Lane. “William Huskisson as President of the Board of Trade.” The American Historical Review, vol. 43, no. 4, 1938, pp. 759–774.
Sinha, Mrinalini. “Britishness, Clubbability, and the Colonial Public Sphere: The Genealogy of an Imperial Institution in Colonial India.” Journal of British Studies, vol. 40, no. 4, 2001, pp. 489–521.
Smyth, Jim, and Alan McKinlay. “Whigs, Tories and Scottish Legal Reform c. 1785-1832.” Crime, Histoire & Sociétés / Crime, History & Societies, vol. 15, no. 1, 2011, pp. 111–132.
Wasson, Ellis Archer. “The Great Whigs and Parliamentary Reform, 1809-1830.” Journal of British Studies, vol. 24, no. 4, 1985, pp. 434–464.
Phillips, John A., and Charles Wetherell. “The Great Reform Act of 1832 and the Political Modernization of England.” The American Historical Review, vol. 100, no. 2, 1995, pp. 411–436.
Tewari, Archana. “THE REFORM BILL (1832) AND THE ABLOLITION OF SLAVERY (1833): A CARIBBEAN LINK.” Proceedings of the Indian History Congress, vol. 73, 2012
Rubinstein Britain’s Century.
Kate Williams Becoming Queen.
Julie Baird Queen Victory
A N Wilson Queen Victoria
Letters of Queen Victoria (by herself).
