It predicted users will decline further as it fights against spam, fake accounts and malicious rhetoric.
Thiel’s interest in China comes amid escalating tensions between the world’s two largest economies.
The company will require advertisers running political campaign ads to certify they are located in the U.S.
Twitter Inc. posted a surprise gain in revenue, the first growth in four quarters.
It’s down about 70 percent from its $20 IPO price. Consumers are favoring apps and products with more functions.