Congress' three most-active traders, along with former House Speaker Nancy Pelosi, have been piling into four brand-name artificial intelligence (AI) stocks.

Despite hot inflation data, earnings reinforced the promise of artificial intelligence. This week is packed with earnings, the Fed, a jobs report, and the Berkshire Hathaway meeting.

At its core, AI involves the development of software and systems capable of performing tasks that traditionally required human intelligence. What sets AI apart is its ability to learn and adapt autonomously,

Nvidia's second-largest holding is a 3.4% stake in Recursion Pharmaceuticals ( RXRX 3.57%). The company is using AI to mine data and discover new potential drugs. And if it successfully develops a breakthrough medicine, it could easily turn into Nvidia's biggest investment.