LOS ANGELES — Some of Hollywood’s brightest stars headlined a fundraiser for President Joe Biden that took in a record $30 million-plus for a Democratic candidate, according to his campaign, in hopes of energizing would-be supporters for a White House contest they said may rank among the most consequential in U.S. history.George Clooney, Julia Roberts and Barbra Streisand were among those who took the stage at the 7,100-seat Peacock Theater in Los Angeles on Saturday night.