Skip to Content Skip to Content

Boris Johnson’s downfall, explained

Political scientist Brendan O’Leary, an expert on U.K. politics in the School of Arts & Sciences, offers his insight on what led to this moment, what might be next, and what it all means for the future of the U.K.
UK Prime Minister Boris Johnson heads toward the front doors of 10 Downing Street in London
Prime Minister Boris Johnson walks back inside after reading a statement outside 10 Downing Street, formally resigning as Conservative Party leader, in London, Thursday, July 7, 2022. Johnson said Thursday he will remain as British prime minister while a leadership contest is held to choose his successor. (Image: AP Photo/Frank Augstein)

Recent Articles

  • More Articles
  • Tracing an ancient blue across the ancient world
    Examples of cross sections of Egyptian blue samples.

    nocred

    Tracing an ancient blue across the ancient world

    Penn researchers Vanessa and Alexis North are studying one of the largest collections of Egyptian blue objects ever found in the ancient Near East, shedding new light on how the world’s first synthetic pigment may have traveled far beyond Egypt.

    Aug 10, 2026

    A new role for dental providers? Rethinking where vaccines are given
    Dental provider talking to a patient.

    nocred

    A new role for dental providers? Rethinking where vaccines are given

    Vaccinations have traditionally been administered in primary care settings or pharmacies. However, for about a decade, some states have authorized dentists to administer vaccines, and many others did so during the COVID-19 pandemic. The effectiveness of this approach has led some countries and states to expand or consider expanding the role of dental providers in delivering routine vaccines, including those against COVID-19 and the human papillomavirus (HPV), and in providing vaccine education.

    Jul 28, 2026

    Penn student develops a way for computer chips to run more efficiently
    Nhlanhla Mavuso looking at an electronic board in the Moore Building.

    Nhlanhla Mavuso of Fluid Silicon at work in the Moore Building.

    nocred

    Penn student develops a way for computer chips to run more efficiently

    Fluid Silicon, a platform from President’s Sustainability Prize winner Nhlanhla Mavuso, allows computer chips to continuously monitor their health and self-tune as their characteristics change. The technology has the potential to reduce energy usage in data centers and improve reliability in mission-critical applications.

    May 5, 2026