Michelle Obama went after Donald Trump in a vicious attack in which she barely had to mention his name. Speaking at the Democratic National Convention Tuesday, she celebrated Kamala Harris’ success through talent and hard work — then made a not-so-subtle dig at Trump. “We don’t all have the luxury of failing forward,” she said. Want more breaking political news? Click for the latest headlines at Raw Story. “The affirmative action of generational wealth. If we bankrupt a business … we don’t get a second, third or fourth chance. If things don’t go our way, we don’t have the luxury of whining o…