Good morning! Here's what you need to know in markets on Tuesday.1, Prime MinisterTheresa May said Russia poisoned a double agent.The US Secretary of State Rex Tillerson echoed May's claims, and said the UK attack would "trigger a response."2. Chancellor Philip Hammond will deliver his Spring Statement on Tuesday. The statement, the first of its kind on Hammond's watch will provide parliament with an update on the government's economic policies and their implementation, but in a departure from previous such statements, is not expected to contain any new policy announcements.3. President Donald Trump on Monday blocked a Singapore-based companys plans to acquire US chipmakerQualcommfor $117 billion, citing national-security concerns. The order effectively squelches what would have been one of the largest technology acquisitions of all time.4. The race toreplace Gary Cohnas the director of the National Economic Council appears to have been narrowed down to one leading candidate.According to CNBC's Jim Cramer,Larry Kudlow is the frontrunner for the job. Kudlow, who hosted a CNBC show with Cramer from 2002 to 2005, waspreviously floatedfor other economic jobs in the Trump administration.5. Oil prices fell on Tuesday, extending falls from the previous day, as the relentless rise in U.S. crude output weighed on markets.U.S. West Texas Intermediate (WTI) crude futures were at $61.20 a barrel at 0122 GMT, down 16 cents, or 0.2%, from their previous close.6. Asian stocks stalled on Tuesday, halting an earlier rally after Wall Street shares lost steam, while the dollar sagged on the back of declining U.S. yields. MSCI's broadest index of Asia-Pacific shares outside Japan inched down 0.05%.7. Yahoo will have to face a lawsuit from victims of a series of data breaches.Yahoo was accused of being too slow to disclose the data breaches, which occurred between 2013 and 2016.8. Singaporean businesses may have violated sanctions against North Korea.A leaked UN draft report alleges two companies supplied banned luxury goods to North Korea.9. It has become much clearer who will replace Lloyd Blankfein as Goldman Sachs CEO. Goldman announced on Monday that co-COO Harvey Schwartz will retire next month, paving the way for fellow co-COO David Solomon a weekend EDM DJ who previously ran the firm's investment banking division for a decade to take the reigns of the fifth-largest US investment bank when Blankfein eventually steps down.10. Dropbox has announced plans to list 36 million shares when it goes public later this year. The company estimated in a filing on Monday that each of those shares would cost $16 to $18. That means the company is seeking to raise up to $648 million, or 467 million, from its public listing. The midpoint of those pricing estimates would value the company at $7.5 billion.Join the conversation about this storyNOW WATCH: These are the watches worn by the smartest and most powerful men in the world Click here to read full news..