Anti-monarchy campaigners will be joining the Trump protest on Wednesday with one simple message: if you have a problem with Trump, you should have a problem with Charles.

Campaign group Republic has pointed out that like Trump Charles is accused of corruption and law breaking, that he is intolerant of dissent and is a billionaire with little interest in democracy.

A huge protest is set to take place in London on Wednesday, in response to Trump's state visit.

Republic will have a contingent in the demo, loudly proclaiming that "corrupt billionaires aren't the answer."

Speaking for Republic, Graham Smith said today:

"Charles and Trump are cut from the same cloth. Like Trump, Charles is a corrupt billionaire accused of breaking the law. Unlike Trump Charles is unelected."

"Trump and Charles have a long-standing relationship going back decades. Charles has visited Mar-a-Lago just as Andrew did. Trump's family has donated to Charles's charities and gained access to royal events and plush dinners as a result."

"Trump might be more crass and obvious in his contempt for democratic norms and ideas like equality, but Charles is deeply conservative and does not agree with the fundamental beliefs that underpin democracy."

"The idea that Charles is a diplomatic asset for the UK is laughable. This visit will not protect the UK from Trump's policy decisions, and Charles cannot do anything other than what the government tells him to do."

"Trump will love the chance to cosy up to the royals, and Charles will be of no use in lobbying for special treatment for the UK from Trump."