[citation needed] Nwaoboshi began his career in 1979 as an aide to Samuel Ogbemudia, Governor of the defunct Bendel State.
[20] Nwaoboshi called the suspension "laughable" and "illegal" before leaving the PDP two days later and joining the APC at a meeting with President Buhari and Delta Central Senator Ovie Omo-Agege.
According to the summons filed against him by his opponent in the party primaries Prince Ned Nwoko stated that the People's Democratic party had unlawfully announced him the winner after he was defeated in the primaries, it was also alleged that Nwoboshi hired thugs to cause a mass scare and stampede when he learnt of his brewing defeat.
[27][28] On 17 April 2019, a Federal High Court in Abuja denied Nwaoboshi's appeal to issue a restraining order to Independent National Electoral Commission stating that it was out of its jurisdiction as an Appeal court had already ruled on the case, consequently the Justice Mahmud Mohammed ordered that Independent National Electorate Commission should withdraw the certificate of return issued to Nwaoboshi and reissue a new certificate to Prince Ned Nwoko.
Although he is now the Delta North Senator [29][30] On 11 May 2019, the Independent National Electoral Commission withdrew the certificate of return issued to Nwaoboshi.
[37][23] In April 2016, a Sahara Reporters article accused Nwaoboshi of acquiring under suspicious circumstances and then failing to disclose a Lagos property he owns.
The report came in the wake of Nwaoboshi sponsoring an amendment intended to weaken anti-corruption laws, and the article claimed that his support may have been in an attempt to stop the Code of Conduct Bureau from trying him.
[42] The Court of Appeal on July 1, 2022, found Nwaoboshi guilty of money laundering and sentenced him to seven years imprisonment alongside two of his companies Golden Touch Construction Project Ltd and Suiming Electrical Ltd.
The conviction followed an appeal of the previous judgment by a Federal High Court dismissing the submission of the Economic and Financial Crimes Commission.