President Joe Biden, speaking to reporters in Delaware on Saturday, said the attack appeared to have been "intended for Nancy."She flew to San Francisco hours after the attack to be with her husband, and released a statement on Saturday expressing dismay that "a violent man broke into our family home, demanded to confront me and brutally attacked my husband Paul."Earlier in the day, Paul Pelosi Jr., the couple's son, was seen outside Zuckerberg San Francisco General Hospital, where his father, a real estate and venture capital executive, was being treated.Experts on extremism said the attack could be an example of a growing trend they call "stochastic terrorism," in which sometimes-unstable individuals are inspired to violence by hate speech and scenarios they see online and hear echoed by public figures.The U.S. Capitol Police, which reported 9,625 threats against lawmakers of both parties in 2021, up nearly threefold from 2017, urged congressional offices in a memo on Saturday to take extra security precautions given the heightened risks they face."