President Donald Trump walked into a summit with Russia’s Vladimir Putin pressing for a ceasefire deal and threatening “severe consequences” and tough new sanctions if the Kremlin leader failed to agree to halt the fighting in Ukraine.

Putin returned to the presidency in 2012. A year later, the White House canceled a planned summit with Putin in Moscow, citing Russia's "disappointing decision" to grant asylum to national security leaker Edward Snowden and a lack of progress in the U.S.-Russia bilateral agenda.

First lady Melania Trump called on Russian President Vladimir Put to protect the innocence of children in a letter made public by U.S. President Donald Trump on Sunday.