Attorneys general from eight states and the District of Columbia have launched a probe into Facebook and its market dominance. The Justice Department has also launched an antitrust review of Big Tech.

Wells Fargo announced Thursday that CEO and President Tim Sloan will step down immediately. The company's general counsel Allen Parker was elected to run the company until a new CEO is selected.

Starbucks announced on Monday that it plans to get rid of plastic straws in its 28,000 stores worldwide by 2020. Instead, the company said it plans to use recyclable plastic lids that allow sipping.