The Arizona Republican said he won’t run for re-election in 2018, and then railed against "outrageous and undignified behavior" in a speech aimed at the president. Flake, who has  criticized the path that the Republican Party has taken under Trump, also called out a "flagrant disregard of truth and decency."

Trump and Corker’s feud erupts again, this time over taxes. The battle between Trump and Senator Bob Corker escalated, with the president calling the Tennessee Republican “incompetent” and the senator accusing Trump of “debasing our nation.” The angry back-and-forth could complicate the GOP’s path to a tax overhaul, as Republicans are eager to project unity on the tax-cut plan at the center of Trump’s agenda.

A $500 billion mega-city. Saudi Crown Prince Mohammed bin Salman announced plans to build a new city on the Red Sea coast that will operate independently from the “existing governmental framework.” It will be powered by clean energy, the prince said, and have no room “for anything traditional.”

The latest sign the global economy is looking better than it has in years. Caterpillar’s earnings announcement on Tuesday reinforced the view that the international economic expansion is the most synchronized since the start of the decade. The manufacturing giant projected 2017 sales of $44 billion, marking a third straight increase in annual revenue projections.

Your employer is rescuing your retirement behind your back. A retirement savings wave rolling stealthily across corporate America is gaining momentum. Some 68 percent of large U.S. companies now automatically enroll employees in 401(k) plans, up from 58 percent two years ago, according to a new survey. Three-quarters of those employers bump up worker savings rates automatically every year.

A successor to McDonald’s Dollar Menu. The world’s largest restaurant chain, facing heavy competition in the U.S., will launch a new value-priced menu nationally next year. The lineup will offer items for $1, $2 and $3, the company said, amid an increase in customer traffic after years of declines.

The French crystal maker’s first hotel is selling its treasures to customers. The sparkly Eye Vases found on prestige suites’ bedside tables can be yours for $440; in the petit salon, Zénith Candlesticks with diamond cuts and hanging darts can be added to your check for $2,505 apiece. Perhaps you noticed the limited-edition Belle Époque vase in the Grand Salon? It runs a cool $37,000. Even the towering chandeliers by the ground-level entrance are up for grabs — for a whopping $216,600.