By The Associated Press Vice President Kamala Harris spoke Monday at a White House celebration with the NCAA championship teams, her first appearance since President Joe Biden announced he was leaving the race. Meanwhile, The Secret Service director is testifying before a congressional committee as calls mount for her to resign over security failures at a rally where a 20-year-old gunman attempted to assassinate former President Donald Trump. Follow the AP’s Election-2024 coverage at: https://apnews.com/hub/election-2024. Here’s the Latest: Secret Service director says she apologized to Donald Trump after his assassination attempt Speaking during a congressional hearing, Secret Service Director Kimberly Cheatle said she apologized to Trump in a phone call after the rally in Pennsylvania. White House chief of staff: There’s still much work to be done White House chief of staff Jeff Zients told White House aides and political appointees across the administration that there remains much work to be done in the next six months, according to two people familiar with this message, even as Biden suspends his candidacy for president. In separate calls, Zients told hundreds of aides and appointees that in every call he’s had with Biden in the last 24 hours, the president has urged his team to focus on key policy goals, such as continuing to implement his legislative achievements and zeroing in on efforts to lower health care and housing costs. As for Biden’s successor, Zients stressed Biden has been clear on his thoughts and acknowledged Harris’ tenure, which he described as extraordinary.