The case for and against impeaching President Donald Trump
By Marshall Cohen
Trump, Ukraine and Impeachment: The Inside Story of How We Got Here (Published 2019)
By Andrew E. Kramer, Sharon LaFraniere & Danny Hakim
Trump impeachment: Americans hold negative views of Democrats' and Trump's handling of impeachment inquiry in latest CBS News poll
By Fred Backus, Kabir Khanna & Anthony Salvanto
Key players in the Trump impeachment probe and what they testified to Congress
By Benjamin Siu & Anne Flaherty