CEO of anti-monarchy group Republic, Graham Smith, has warned of their biggest protest yet, ahead of the King's Speech in Parliament today.
Today King Charles will deliver the annual State Opening of Parliament, where he will read the Government's legislative plans for the next year.
Some of the plans expected to be laid out in King Charles' speech include the Renter's Reform Bill, the Victims and Prisoners Bill and the Data Protection and Digital Information Bill.
The speech will be King Charles' first as the reigning Monarch, after reading the Queen's Speech for the late Queen Elizabeth II in May 2022.
Graham Smith called the King's Speech in Parliament a 'pantomime'
GB News
Republic, along with other anti-royal protestors, are set to line the streets of London as the King will be escorted to Parliament this morning.
Over 500 people are expected to gather to demonstrate against King Charles, carrying the slogan "not my King" on banners, signs and placards.
Speaking to GB News reporter Lisa Hartle, CEO of the group Graham Smith said he wants to see "the removal of the monarchy and the House of Lords".
He added that events today are "really opposing the monarchy".
Smith continued: "This is an advert for how bad our constitution is. A King and the crown sitting in the unelected Lords, the whole lot should be swept away.
"We need a properly democratic parliament with an elected head of state."
When asked for his thoughts on the current government and monarchy with King Charles in charge, Smith said: "The vast majority of people are dissatisfied with our political system. And the reasons for that are very much attached to the Crown and the powers it gives the government, the lack of a elected upper house.
"And this is a pantomime today that reminds us of how bad that political system really is."
WATCH: Protestors chant 'not my King' as King Charles leaves Parliament
Smith defended the protests and their possible impact on tourists visiting Buckingham Palace, stating: "our history is not going anywhere. The palace isn't going anywhere. But people don't come here to see Charles.
"You won't get many people here today as tourists wanting to to see this going on. So you know we will be fine, our tourism industry will thrive, but the most important thing is that we have a decent democracy, one that works for the people and where we elect everybody who is going to be in that building."
Republic previously attempted to protest at the Coronation of King Charles, which saw their group of nearly 2000 people stopped by police officers. Smith said they are "suing the police" over the incident.
Smith said of the King's Speech protests: "We've had some conversations with them today, so far so good. So we're not expecting a repeat of that problem."
