President Donald Trump is for a clean Brexit. Boris Johnson became prime minister in large part because he favors a clean Brexit, as the people of the UK called for in a referendum.
But if it happens, it will be bad news for not just the UK and the United States, but for Trump as well, according to the mainstream media.
“President Trump’s support for Britain’s exit from the European Union may be about to collide with his election-year hopes of presiding over a strong economy,” wrote David Lynch of the Washington Post in “Trump might like Brexit less when he sees what it does to the economy.” 
Trump “has long seen ‘Brexit’ as reflecting the same sort of nationalist impulse that drove his White House upset in 2016,” Lynch wrote . He has “hailed” Johnson, “who vows to sever ties with Europe on Oct. 31 no matter what, as a kindred populist spirit.”
The U.S. economy remains strong, Lynch conceded , with growth at 2 percent and unemployment at 50-year lows. And the Federal Reserve seems to poised to grant Trump’s request to lower interest rates  when it meets in two weeks.
But “global worries already are showing up in currency and bond markets,” Lynch wrote , noting the dollar “last month reached an all-time high against a basket of major trading currencies.”
Thus, a hard Brexit is a “multiyear looming catastrophe’” and a “reminder to financial markets that other bad things can happen,” Lynch wrote , quoting a financial consultant.
Yet, “despite the economic danger, the Trump administration continues to cheer on the long-running Brexit drama.” Trump, who said he eventually would be called “Mr. Brexit,” has encouraged Johnson and told him a new UK-US trade deal would happen quickly once Brexit occurred.
But “despite Trump’s optimism about ‘rapidly’ closing a deal, the British leader has acknowledged that agreement in the next year is unlikely,” Lynch wrote .
CNN also signaled it is prepared to blame any problems executing Brexit or resulting from it.
“Trump can’t stand the EU – it’s just the kind of multinational organization that pools sovereignty that he abhors,” wrote Stephen Collinson of CNN under “Trump barges into Britain’s Brexit crisis.” 
Trump “also is betting Trump is a populist in his own image who’ll move the UK away from Europe and into his America First gang,” Collinson wrote .
In a subhead, CNN called Johnson’s attempts to prorogue parliament and limit debate on a hard Brexit “a move from Trump’s playbook.” 
Collinson wrote : “Trump might also identify with Johnson’s daring. Any attempt to bypass parliament on a crucial constitutional question could be plucked from the Trump playbook.”
He then tried to push the narrative that Trump regularly does unlawful things to get his way only to be stricken down by the courts. The president, Collinson wrote , “has consistently sought to maximize his own power by outflanking lawmakers – for instance in financing his border wall. Were he to study the intricacies of British politics, Trump might also envy Johnson’s room for maneuver.
“While many of his own power grabs have been thwarted by the Constitution and the courts, UK democracy runs on an arcane set of unwritten precedents and customs that may give a resourceful prime minister more leeway than a president,” Collinson wrote .
In fact, Trump has been quite successful in court. His ban on travel from countries in the Middle East where proper documentation could not be provided withstood a variety of court challenges  and is now endorsed by the Supreme Court. He succeeded in forcing asylum applicants to wait outside the U.S . His ban on transgender people serving in combat roles  has withstood numerous legal challenges, and his policies on schools , pipelines , removing security clearances  from former officials, and wall funding  all have held up in court as well.