He's back — and back at it

Trump's tweets on Tuesday morning ratcheted up a dispute with Chancellor Angela Merkel that risks getting personal and undermining a trans-Atlantic bond that is the bedrock of U.S.-European relations. Also on Tuesday, during a speech in Sydney, Senator John McCain said that Australia wasn’t alone in questioning whether America was still committed to upholding peace and justice around the world.

Trump’s communication director resigned. Mike Dubke announced his resignation on Tuesday after less than three months on the job, a dire start to Trump’s first week back in Washington. Dubke was one of the few senior White House officials without roots in Trump’s presidential campaign.

Amazon shares hit $1,000 for the first time, marking a new milestone for a company wooing investors by dominating online commerce and cloud computing. That’s up about 40 percent from a year ago and more than double the 15 percent gain of the S&P 500 in the same period. Investors are thinking about how much further Amazon can grow as it tries to replicate its U.S. success abroad.

Police found Tiger Woods asleep at the wheel, with no alcohol in his system. His car was on the side of a six-lane Florida road, the engine running and his right blinker flashing. His speech was slow and slurred. A police affidavit released Tuesday listed four medications including Vicodin that Woods reported taking.

Rich people don’t want Ivanka Trump’s fashion. The first daughter aimed her label at wealthy sophisticated women, but it didn’t take. So she moved downmarket. Her label now represents a much more modest image, perhaps recognizing exactly where on the retail continuum her products truly reside. As it turns out, targeting the masses has worked.

Bakers are cashing in on Instagram’s cake obsession. The hashtag "cake" has generated over 45 million posts, and "cakestagram" has toted up 1.8 million. That’s a big business opportunity for bakers. While professional pastry chefs use Instagram to advertise their brick-and-mortar businesses, Cakestagram is driven by self-taught patissiers who work out of their homes and have no interest in opening bakeries. Instead, they focus on online ordering, video content partnerships and social media-personality-driven workshops.

When it comes to certain staples like t-shirts, button-ups, and teeth, white is never controversial at any time of year. Here are a few guidelines for pulling off your most polarizing piece of clothing with confidence.