What COVID-19 cases after Capitol lockdown say about the first dose of the coronavirus vaccine.

House Democrats are raising concern over safety measures on Capitol Hill after three lawmakers tested positive for COVID-19 following last week's deadly assault. All three had received their first dose of a coronavirus vaccine in recent weeks. Dr. Leo Nissola, a medical expert and immunotherapy scientist, joined CBSN to discuss what this tells us about the protection of a single jab.

CBSN is CBS News’ 24/7 digital streaming news service featuring live, anchored coverage available for free across all platforms. Launched in November 2014, the service is a premier destination for breaking news and original storytelling from the deep bench of CBS News correspondents and reporters. CBSN features the top stories of the day as well as deep dives into key issues facing the nation and the world. CBSN has also expanded to launch local news streaming services in major markets across the country. CBSN is currently available on CBSNews.com and the CBS News app across more than 20 platforms, as well as the CBS All Access subscription service.

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Senate starting confirmation hearings for Biden's cabinet nominees.

Senate starting confirmation hearings for Biden's cabinet nominees.

The Senate is kicking off a series of high-stakes confirmation hearings Tuesday for President-elect Joe Biden's top cabinet nominees. Lawmakers will question his picks to lead the Departments of State, Treasury, Homeland Security and Defense along...

WorldView: Alexey Navalny calls on supporters to protest; Italian PM wins crucial confidence vote.

WorldView: Alexey Navalny calls on supporters to protest; Italian PM wins crucial confidence vote.

Russian opposition leader Alexey Navalny told supporters to take to the streets after he was arrested upon his return to Moscow. Also, Italy's prime minister is barely holding onto power, and China and the World Health Organization are coming unde...

President Trump expected to issue dozens of pardons in final full day at White House.

President Trump expected to issue dozens of pardons in final full day at White House.

President Trump is expected to issue dozens of pardons Tuesday, his final full day at the White House. He's then expected to skip President-elect Joe Biden's inauguration and instead fly home to Florida before Wednesday's ceremony. CBS News White ...

Biden to propose immigration reforms

Biden to propose immigration reforms

President-elect Joe Biden is planning to announce a series of moves on immigration policy once he takes office. CBSN political reporter Caitlin Huey-Burns joins CBSN to talk about those plans and explain the latest on preparations for tomorrow's i...

Watch live coverage: Biden's Cabinet picks testify at Senate confirmation hearings.

Watch live coverage: Biden's Cabinet picks testify at Senate confirmation hearings.

Watch live on January 19 starting at 10 a.m. ET: CBSN will have live coverage of the Senate confirmation hearings for President-elect Joe Biden’s Cabinet picks. The Senate Homeland Security and Governmental Affairs Committee is slated to hold a he...