President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE's state visit to the U.K. is being rebuked by the left-leaning Labour Party, with members saying they plan to participate in a protest Tuesday.

Protesters will gather at Trafalgar Square to show “opposition to Trump hate, and support for Jeremy Corbyn's vision of hope,” according to a Facebook event description.

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Shadow Secretary of Foreign and Commonwealth Affairs Emily Thornberry said she'll be participating in the protest — using the announcement to brand Trump a "racist" and "sexual predator."

"A president who is destroying all the values that have always united Britain and America," Thornberry said.

"This president does not deserve the honor of a state visit. He is not welcome," she said.

Next week, the Tory government will roll out the red carpet for Donald Trump. A President who is destroying all the values that have always united Britain and America. Join me and thousands of others in Trafalgar Square next Tuesday @ 11 am to #StopTrump pic.twitter.com/csBDpi9npy — Emily Thornberry (@EmilyThornberry) May 31, 2019

Shadow Home Secretary Diane Abbott announced Monday she also plans to attend the demonstration.

Pleased to be joining Tuesday's #TogetherAgainstTrump protest.

You can see details of the Labour bloc at https://t.co/g3a9wE3tiG

RT if you stand in solidarity with those he's attacked in the US, around the world and in our own country - including @SadiqKhan. — Diane Abbott (@HackneyAbbott) June 3, 2019

As many as 250,000 protestors are expected to march from Trafalgar Square to Downing Street, according to The Telegraph.

Trump's visit was similarly knocked by London Mayor Sadiq Khan who wrote an op-ed Saturday saying that the United Kingdom is on the "wrong side of history" with Trump's visit and said it will be looked back on with "profound regret."

Trump fired back in a tweet Monday that Khan is "a stone cold loser" who has "done a terrible job" as mayor.

The Stop Trump Coalition reportedly plans to fly an inflatable orange baby created to look like the president over Parliament Square on Tuesday in protest.

Khan reportedly OK'd the balloon request, and protestors are waiting on permission from the Metropolitan Police, according to The Times.