Senator J.D. Vance debuted on the national stage Wednesday in his first address as the Republican vice-presidential nominee -- completing a meteoric rise from humble midwestern beginnings to a coveted spot on Donald Trump's ticket. Trump picked the junior senator from Ohio to be his No. 2 at the Republican National Convention in Milwaukee on Monday, and he did not disappoint his new boss with a fiery speech before GOP delegates. The one-term senator, who turns 40 next month, would be the third-youngest vice president in American history.

THE IDEOLOGICAL DIFFERENCES BETWEEN TRUMP AND VANCE

President Joe Biden is set to endorse major Supreme Court reforms next week, like term limits for justices and establishing a mandatory ethics code. Once reluctant to endorse structural changes to the Supreme Court, such as implementing term limits or increasing the number of justices, Biden is also calling for a constitutional amendment aimed at removing the extensive immunity currently granted to presidents, following growing concerns over executive accountability.

SEE THE DRASTIC REFORMS FACING THE SUPREME COURT

The largest stegosaurus skeleton ever found, nicknamed Apex, sold for a record-breaking $44.6 million at auction in New York on Wednesday, Sotheby's said. Estimated to be 150 million years old, Apex is said to be "among the most complete skeletons ever found," according to the auction house. It measures 11 feet (3.3 meters) tall and 27 feet long. The previous auction record of $31.8 million for a dinosaur skeleton was set in 2020 for a Tyrannosaurus Rex nicknamed "Stan."

SEE WHY APEX SOLD FOR 10 TIMES THE PROJECTED PRICE

Who developed the first semiconductor device, and when? Who invented the semiconductor chip, and how long after the initial find?

Wednesday's answer: Although the identity of Satoshi Nakamoto has not been confirmed, bitcoin's inventor owns 1.1 million BTC ($64 billion).