Trump lauded Liberia's visiting President Joseph Boakai for having "such good English," apparently not realizing that it is both Boakai and his nation's primary language.
Nvidia became the first public corporation to be valued at more than $4 trillion based on the rising price of its stock before dipping below $4 trillion at market close. The company makes computer chips. CBS News MoneyWatch correspondent Kelly O'Grady reports.
