Polish President receives US President Joe Biden with welcome ceremony at the Presidential Palace. RELATED: Joe Biden, EU strike gas partnership to undercut Russian energy https://bit.ly/3iDyKWT President Joe Biden on Friday expressed support for Poland's efforts in helping Ukrainian refugees during a briefing on the humanitarian crisis sparked by the month-old war in Ukraine. More than 2 million Ukrainians have fled to Poland since the start of Russia’s invasion of their country, and Biden will meet with Ukrainian refugees and American humanitarian workers Saturday in Warsaw, White House national security adviser Jake Sullivan said. » Subscribe to USA TODAY: http://bit.ly/1xa3XAh » Watch more on this and other topics from USA TODAY: https://bit.ly/3MXbr8l » USA TODAY delivers current local and national news, sports, entertainment, finance, technology, and more through award-winning journalism, photos, videos and VR. #JoeBiden #Russia #Ukraine