Donald Trump and Brazil‘s far-right leader Jair Bolsonaro held a joint press conference in the White House Rose Garden, in a show of unity between the two nations.
President Trump said he told Mr Bolsonaro he would make Brazil a major non-Nato ally, with the possibility of supporting a campaign to make it “maybe a Nato ally”.
In turn, the Brazilian leader went on to praise Mr Trump for changing the United States, echoing Mr Trump’s “fake news” slogan.
“Brazil and the United States are tied by the guarantee of liberty, respect for the traditional family, the fear of God our creator, against gender identity, political correctness and fake news,” Mr Bolsonaro.
The far-right leader has been an avid supporter of President Trump, with their mirroring speeches sharing conservative views.
The press conference came after Donald Trump was drawn into a Twitter spat with George Conway, husband of adviser Kellyanne, over questions around the president’s mental health.
The argument comes as the FBI investigates the president's ties to the owner of a chain of massage parlours in Florida at the urging of House speaker Nancy Pelosi and Senate minority leader Chuck Schumer.
The Democrats have asked the bureau to look into “public reports about alleged the activities by Ms Li ‘Cindy’ Yang and her apparent relationship with the president”, who has been the subject of allegations relating to human trafficking, prostitution and promising Chinese businessmen access to Mar-a-Lago to meet Mr Trump, who denies knowing her despite their being photographed together.
Reports have meanwhile emerged suggesting the president obtained $2bn (£1.5bn) in loans from Deutsche Bank over two decades, allegedly exaggerating his personal wealth and promising bankers weekends at his Florida retreat in exchange for their help in securing the funding.
Read events from the day as they happened
House of Representatives speaker Nancy Pelosi and Senate Democratic leader Chuck Schumer released the letter, signed by four other politicians. It asked investigators to look into "public reports about alleged activities by Ms Li 'Cindy' Yang and her apparent relationship with the president".
The Orchids of Asia chain of massage parlors founded by Ms Yang is "suspected of involvement" in human trafficking and prostitution, which involves female immigrants being forced to serve as "sex workers," said the letter to the FBI and other federal investigative agencies.
Senators Mark Warner and Dianne Feinstein and Representatives Adam Schiff and Jerry Nadler signed the letter. It said Ms Yang also reportedly created a business called GY US investments, which they allege "may be selling access to the president and members of his family to clients from China".

House and Senate leaders demand FBI investigation into spa owner linked to Trump and Robert Kraft
Ms Yang's lawyer says that her client has been in the dark on the allegations raised against her following the human trafficking sting at a spa she no longer ownsThe Democrats' letter said Li Yang's own website, which has been taken down, once offered clients the "opportunity to interact" with Mr Trump and other political figures as well as participation in White House and Capitol Hill dinners.
The letter said that, if proven, such allegations "raise serious counterintelligence concerns."
It asked if Ms Yang had been the focus of earlier federal or state probes and for an assessment of "counterintelligence risks", which her apparent activities might have posed.
The Democrats also asked if other individuals have used Mar-a-Lago, the president's Palm Beach estate, to offer foreigners access to President Trump or people around him, as well as whether Ms Yang or her foreign clients have had access to Mr Trump or other US officials at the White House, Mar-a-Lago or other Trump properties.
The FBI had no comment on the legislators' letter.
Asked about the case, Chinese foreign ministry spokesman Geng Shuang said the Chinese government followed the principle of not interfering in the internal politics of other countries.
"This is what we say and this is what we do," he told a daily news briefing, without elaborating.
His son, politician Eduardo Bolsonaro, described the CIA as "one of the most respected intelligence agencies in the world" in a tweet that was likely to raise eyebrows back home in Brazil, where the US and its spy services have been regarded with suspicion in recent years.
In 2013, leaks from Edward Snowden revealed that the National Security Agency had wiretapped conversations involving Ms Rousseff, leading to several years of tense relations between the US and Brazil.
His speech to the Chamber of Commerce yesterday came after the two countries signed several bilateral agreements, including one that allows the United States to use Brazil's Alcantara Aerospace Launch Base for its satellites and Brazil announced an end to visa requirements for US tourists who visit the country.
A senior US administration official told the AP's Ben Fox that the US does have a $27bn (£20bn) trade surplus with Brazil and that there are opportunities to bring the nations' business communities closer. He said there are expected to be new initiatives on energy infrastructure.
The official noted that Brazil has a close relationship with Venezuela's military and may be able to serve as a go-between with the security forces that continue to support embattled president Nicolas Maduro.

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