John McCain Says Donald Trump Is Failing To Provide Adequate "American Leadership"

Mark Cuban: Trump Doesn’t Have ‘Leadership Skills’ (Video)

Mark Cuban: I Wouldn't Hire Trump (Video)

Sanders Slams Trump, 'Proud to Stand with' Clinton

Bernie Sanders, speaking Monday on the opening night of the Democratic National Convention, called on his supporters to ma

Obama Calls Out Climate Change Deniers as 'Not Fit to Lead' (VIDEO)

President Obama spoke at the GLACIER Conference in Alaska to address the climate change issue.