With opinion polls showing him falling further back against Democrat Hillary Clinton, Donald Trump has intensified his allegations about a "rigged election."
U.S. President Barack Obama lacerated Donald Trump on Tuesday over his repeated assertions that the Nov. 8 election is rigged against him, telling the Republican presidential candidate to "stop whining and go try to make his case to get votes."
06:47 Trump to NRA: ‘You have a true friend in the White House’12
16:56 Trump Orders Easing Safety Rules Implemented After Gulf Oil Spill18
15:39 The Trump administration just signaled it may take the only action that could actually stop North Korea15
22:36 How Trump’s first 100 days compares to past presidents1