The president’s personal attorney denied having knowledge of any efforts to keep tabs on Marie Yovanovitch. Source

Seven impeachment managers will deliver articles of impeachment to the Senate and make the House’s case at trial. Source

After name-checking members of Congress and business leaders and riffing on his favorite topics, the president signed the long-awaited trade agreement. Source

The police checked the home several times, but found no sign of forced entry — then they checked one last time. Source

Six candidates took the stage in the Democratic debate in Des Moines, Iowa, to discuss issues, including health care and foreign policy, for the last time before Iowans vote in the first caucuses of the presidential race. CBS News correspondent Naomi Ruchim has a full recap of the debate, and CBS News political correspondent Ed O’Keefe joined “CBSN AM” from Des Moines to talk about the key takeaways. Source

Six of the remaining 12 Democratic presidential candidates faced off in Tuesday night’s debate in Des Moines, Iowa. CBS News political contributors Leslie Sanchez and Antjuan Seawright joined CBSN to discuss what voters learned ahead of the Iowa caucuses next month. Source

President Vladimir Putin proposed major changes to Russia’s constitution on Wednesday that reignited speculation over the country’s future and how much power he’ll still have after his current term ends in 2024. Shortly after Putin’s announcements, his entire Cabinet, led by Prime Minister Dmitry Medvedev, announced their resignations. Source

The signing comes after a nearly two-year-long trade war. Source

Booker complimented his fellow Democrats in the race, but said he is “very concerned” about the lack of diversity in the remaining candidates. Source

Six candidates took the stage in Tuesday night’s Democratic debate to discuss issues including health care and foreign policy for the last time before Iowa voters head to the polls. Democratic strategist and CBSN political contributor Lynda Tran joined CBSN AM to analyze the key issues. Source