Anti-monarchy group Republic have accused the Prince of Wales of dishonesty and said he was only meeting ministers from departments relevant to his own interests.
Republic chief executive Graham Smith said:
Charles's claim that his meetings with ministers are part of his preparation for being king are simply untrue.
Charles is abusing his position to promote his own interests and his pet issues. Such dishonesty needs to be directly challenged by MPs and in public.
It is telling that while claiming to be meeting MPs in preparation for being king, Charles has not once met with Treasury or justice department ministers. He is only meeting ministers relevant to his political interests.
More top news
X Factor judge Rita Ora was booed for her decision-making during the show's Six Chair Challenge.
Samantha Hayes, 30, and her son Liam were last seen around 5.20pm on Friday afternoon.
The Cycling Minister has been forced to defend his decision not to wear a helmet when riding in London.