Donald Trump shares the tweets of British commentator Katie Hopkins.

The president's retweets have made Hopkins one of his most visible cheerleaders when it comes to his views on issues like immigration, minorities, and crime — both in the US and the UK.

Hopkins is now a regular political pundit on US television.

But in Britain she is a marginal figure who has lost media jobs because of her extreme views.

She compared migrants to cockroaches and lost a major radio job after saying there should be a "final solution" following a terrorist attack in the UK.

She once claimed to be "the new Jesus."

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If you don't live in the United Kingdom, your first encounter with British commentator Katie Hopkins will probably have been via President Donald Trump's Twitter feed.

Thanks to Trump's retweets, Hopkins has become one of president's most visible cheerleaders.

On Saturday, Trump retweeted a post by Hopkins, which described London as "stab-city" and attacked the appearance of Mayor Sadiq Khan, who the US president previously called a "disaster" and "stone-cold loser."

The president has a long history of promoting Hopkins on Twitter — before and during his presidency.

Last week, Trump shared Hopkins' tweet which described the US city of Baltimore as a "s---hole."

Baltimore is represented by Elijah Cummings, a congressman who Trump said represented a "disgusting, rat and rodent infested mess" where "no human being would want to live."

In June, Trump shared another Hopkins tweet criticising Khan and his handling of London. Hopkins has repeatedly described the English capital as "Khan's Londonistan."

In 2015, nearly a year before he was elected president, Trump tweeted praise for Hopkins' "powerful writing on the U.K's Muslim problems." He described her as a "respected columnist."

However, in the UK, Hopkins is not regarded as a respected pundit. She is not a regular guest on mainstream TV channels, like she is on Fox News in the US.

Rather, Hopkins is widely seen as someone whose far-right views on issues like immigration and class have pushed her to the margins of political debate.

She was let go from two media jobs — including for a leading right-wing media organisation — following her tweets about a terrorist attack in Manchester.

Her strange and eventful career began when she was a contestant on one of the country's most popular reality TV shows over a decade ago, before she rebranded herself as "Britain's most controversial columnist."

Over the years she has compared migrants to cockroaches, called for refugee boats to be sunk by gunships, and suggested that there should be a "final solution" to Islamic terrorism in the West.

Here's what you need to know about Hopkins.