"She has made a number of very profitable trades, and beaten the market by a wide margin."

Article: https://www.capitoltrades.com/articles/the-secrets-behind-nancy-pelosi-s-market-beating-trading-strategy

Buying long term(LEAPS) ITM calls

"The first is a straightforward strategy that involves buying long in-the-money (ITM) call options that have a strike price that’s lower than the current stock price. If the call option is successful, Pelosi exercises the contract and takes ownership of the shares."

Covered calls

"The other main strategy involving call options that Pelosi employs is a covered calls strategy. This involves selling a call option while owning the underlying stock in order to generate income"

So she does simple options strategies available to everyone, buying ITM LEAPS and covered calls.