The chipmaker Nvidia has become the first company in the world to reach a market value of $4tn on Wednesday. David Harper hears from experts. And Donald Trump has said the United States is shifting from aid to trade in its relationship with Africa as he welcomed five presidents from the continent to the White House.

Plus, Sen. Josh Hawley voted in favor of Donald Trump's megabill but now says his goal is to make sure a provision involving Medicaid doesn't go into effect.

"The big money will start coming in on Aug. 1, I think that was made clear today," Trump told reporters. He then turned to Treasury Secretary Scott Bessent, who estimated that the United States could collect more than $300 billion in tariff revenue by the end of the year,