U.S. president pledges ‘unwavering’ support to Ukraine Twitter.com/POTUS U.S. President Joe Biden (left) walks with Ukrainian President Volodymyr Zelenskyy on Saint Michael’s Square in Kyiv on February 20. CHICAGO – U.S. President Joe Biden’s hazardous trip to Kyiv ahead of the first year anniversary that marked the start of Russia’s full-scale invasion of Ukraine was...