He campaigned against the proposed expansion of Heathrow Airport, the top-up tuition fee reforms in 2004 and voted against the UK's involvement in the Iraq War in 2003. While serving as an MP, he also campaigned for reform of the licensing laws, the smoking ban, bus regulation and public service broadcasting. Grogan also campaigned for the protection of the rights of agency workers, the regulation of lobbyists and access for all to sporting listed events on free-to-air TV. He was also the chairman of the All-Party Parliamentary Groups on the BBC, Beer and Mongolia.