When he was first banned from travelling to the US in 2009, former Attorney General Amos Wako accused Washington DC of a witch-hunt.
Wako had been accused by Washington DC of blocking radical reforms in the country in his capacity as the Attorney General.
In a spirited fight to overturn his then private designation, Wako insisted that he had not engaged in any form of corruption as claimed by the US.
"Let me state that Sitswila Amos Wako has not been engaged in corrupt actions which have adversely affected the national interests of the United States of America or at all," Wako said at the time in his defence
Wako was always at loggerheads with ODM party during his time as AG, a party he would later join and win Busia senatorial seat.
Former US envoy to Kenya Michael Ranneberger had accused Wako of being a stumbling block to radical changes in the country's systems besides accusing him of abetting corruption.
"This he did by interference with judicial and other public processes, and that this corruption has had a serious adverse impact on U.S. national interest," he had said.
The former envoy said Wako had not only failed to prosecute senior governmental officials but also claimed that he actively thwarted their prosecution.
"He has been repeatedly accused by civil society groups as well as the head of the Kenyan Anti-Corruption Commission of failing to prosecute cases of official corruption," he said.
On Monday, the US for the first time publicly banned Wako over alleged corruption, a move that now means he cannot appeal to authorities for the lifting of the ban.
Secretary of State Mike Pompeo accused Wako of engaging in significant corruption, adding that his ban shows US' commitment to helping Kenya win fight against corruption.