Another day, another Obama nominee for Republicans to attack. President Obama will nominate Thomas Perez, a Justice Department official, to take over at the helm of the Labor Department, White House officials said on Sunday. He will replace Hilda Solis, who stepped down in January. Perez currently heads the DOJ’s civil rights division, and is the first Hispanic-American chosen for Obama’s second-term cabinet. But he’s not a shoo-in to be approved—congressional Republicans are expected to question him over Labor Department policies, which the GOP has called unfair to small businesses.