FILE - In this March 10, 2011, file photo, Vice President of the United States Joe Biden, left, shakes hands with Russian Prime Minister Vladimir Putin in Moscow, Russia. Russian President Vladimir Putin has congratulated Joe Biden on winning the U.S. presidential election after weeks of holding out. Putin's message to Biden on Tuesday, Dec. 15, 2020, came a day after the Electoral College confirmed Biden as the nation's next president. The Russian president is one of the last world leaders to congratulate Biden. (AP Photo/Alexander Zemlianichenko, File)
Putin presents a Russia-sized foreign-policy headache for Biden
With the departure of Donald Trump from the White House, Russia-watchers can be forgiven for breathing a sigh of relief: From the moment Russian President Vladimir Putin called Trump the front-runner for…
