The commonality in these cautionary tales is the speed with which the final selections were made, leaving little time for thorough vetting and testing.
NPR's Ari Shapiro speaks with our regular political commentators, E.J. Dionne of the Washington Post and Brookings Institution and David Brooks of The New York Times, about the terror attack in Nice, France, and Donald Trump's new running mate, Indiana Gov. Mike Pence.
The growing African-American population in suburban Atlanta is making Georgia appear less solidly Republican than it has recently been and could make it a presidential swing state.
If Trump wants to win Michigan, he's got to win over working-class white men in suburban Detroit. But that will be tough. The state hasn't backed a Republican presidential candidate since 1988.
Now running mates, Donald Trump and Indiana Gov. Mike Pence will have to cross gulfs on some key issues including Medicaid expansion, LGBT rights and Trump's proposed Muslim ban.
The first night, July 25, will feature Bernie Sanders and first lady Michelle Obama. President Obama and former President Bill Clinton will speak later in the week.
Though Trump called off his news conference announcing his running mate, nevertheless he made his announcement right on time — on Twitter. In the tweet, Trump said his choice is the Indiana governor.