Trump Knows His Backers Believe Every Outrageous Lie About Obama – and He's Giving Them What They Want @alternet:
"It’s hard to overstate how extraordinary it is that the GOP nominated a birther for president. These are people who reject the legitimacy of our first African-American president, precisely because he’s African-American. This is Trump’s chosen base, and he owes his political existence to their allegiance. It’s why he’s been dog-whistling to white nationalists since he started campaigning."