David Hogg, a young liberal activist and now a vice chair of the Democratic National Committee, is leading an effort to unseat the party’s older lawmakers in primaries.
David Hogg, who survived the 2018 school shooting in Parkland, Fla., is also the president of Leaders We Deserve, which is planning a $20 million campaign to elect younger Democrats in solidly blue districts.
In Joseph R. Biden Jr.’s first extensive speech since he left office, he accused the Trump administration of “taking a hatchet” to the Social Security Administration.