Analysts discuss the 20-year rule of Vladimir Putin
By Christina Pazzanese
Trump touts Putin's speaking out against his impeachment
By Colby Itkowitz & Isabelle Khurshudyan
Washington Post: Trump said he believes Ukraine interfered in 2016 election because 'Putin told me'
By Paul LeBlanc
Vladimir Putin says Trump was impeached for 'made-up reasons'
By Devan Cole & Mary Ilyushina
Former White House officials say they feared Putin influenced the president's views on Ukraine and 2016 campaign
By Josh Dawsey, Carol D. Leonnig & Shane Harris