Three U.S. destroyers, U.S. fighter jets and a British warship Tuesday took part in repelling the latest barrage of drones and missiles fired by Iran-backed Houthi rebels in Yemen toward commercial vessels in the Red Sea. There were no reports of injuries or damage. However, Secretary of State Antony Blinken warned Wednesday there would be “consequences” if the attacks continue. Charlie D’Agata reports. Source

Former New Jersey Gov. Chris Christie ends his bid for the White House. Political strategists Maura Gillepsie and Chuck Rocha join CBS News to discuss the decision and what it means for the rest of the GOP field. Source

Hunter Biden makes a surprise visit to a House Oversight Committee hearing, where Republicans passed a resolution to recommend holding the president’s son in contempt of Congress. CBS News congressional correspondent Scott MacFarlane has the latest. Source

Boeing leadership is working to understand the breakdowns in the company’s manufacturing and testing of new 737 Max 9s at its Renton, Washington, factory after a door panel blew out last week during an Alaska Airlines flight. Inspections have since revealed loose hardware on several grounded 737 Max 9s. Kris Van Cleave has more. Source

The law would ban types of gender-affirming care, such as surgery and hormone therapy, for those under 18 and also bars transgender girls and women from playing on women’s sports teams. Source

Donald Trump will be back in court in New York on Thursday for closing arguments in his civil fraud trial. The former president sought to deliver part of the remarks, but the judge rejected his request. CBS News campaign reporter Katrina Kaufman has details. Source

Cozy up to the new year with terrific prices on high-quality espresso machines from De’Longhi, a trusted brand. Source

With just five days until the Iowa caucuses, former New Jersey Gov. Chris Christie suspends his campaign for president. CBS News senior White House and political correspondent Ed O’Keefe and political director Fin Gomez report from Iowa with the latest on the GOP primaries. Source

Hunter Biden, son of President Biden, surprised Capitol Hill Wednesday by appearing at a Republican-led House Oversight Committee hearing over whether he should be held in criminal contempt of Congress for refusing its subpoena last month for a closed-door interview. Hunter Biden has insisted he’ll only testify at a public, open hearing. Scott MacFarlane was at the meeting and has more. Source

Former New Jersey Gov. Chris Christie announced Wednesday that he is dropping out of the presidential race, less than a week before the Iowa caucuses. Ed O’Keefe has more from Des Moines. Source