In 1992, Ihedioha was appointed press officer to the Senate President of the Federal Republic of Nigeria, Chief
Iyorchia Ayu. A year later he was appointed chief press secretary to the Deputy Senate President. Following a military incursion in the polity in November 1993, Ihedioha returned to his communications practice as Chief Executive Officer of First Page Communications. He became Director of Publicity of the newly formed People's Democratic Movement, the purveyor of the Peoples Democratic Party in 1998. He was appointed special assistant to the Presidential Adviser on Utilities in July 1999, as a special assistant on media and publicity to the President of the Senate in November 1999, and as a special assistant on political matters to the Vice President in September 2001. He won a seat in the House of Representatives as a member representing
Aboh Mbaise-
Ngor Okpala Federal Constituency of Imo State in 2003. He was the deputy speaker of the House of Representatives from 2011 to 2015. During this period, he served as the Speaker of the House of Representatives after Tambuwal's swearing-in as the Executive Governor of
Sokoto State. On 9 March 2019, Ihedioha contested for the gubernatorial seat for Imo State under the political platform of the Peoples Democratic Party (PDP). On 11 March 2019, Ihedioha was declared Governor-elect by the
Independent National Electoral Commission (INEC) sitting in Imo State, after he defeated
Uche Nwosu (son-in-law of the incumbent governor) who ran under the Action Alliance Party (AA), with a total of 273,404 votes. He was removed from office on 14 January 2020 by a Supreme Court judgment. On 23 April 2024, Ihedioha resigned from
Peoples Democratic Party (PDP). ==Legislative activities==