Republicans have accused President Obama of cover-ups comparable to Watergate. Ari Melber gives them a lesson in presidential history. watch
"...We're going to continue to stand with the Ukrainian people as they seek to determine their own future. Even in the midst of this crisis, they have made remarkable progress these past few months. They held democratic elections, they elected a new president, they're pursuing important reforms, and they signed a new association agreement with the European Union. "
President Obama on widening sanctions against Russia