Robert Dallek

The lifelong health problems of John F. Kennedy constitute one of the best-kept secrets of recent U.S. history - no surprise, because if the extent of those problems had been revealed while he was alive, his presidential ambitions would likely have been dashed.

Late 19th-century populists saw bankers and industrialists manipulating markets to enrich themselves at the expense of small farmers and labourers and favoured political candidates promising economic relief through free and unlimited coinage of silver.

The way you have bipartisan negotiations, you sit down across the table, as we did with Ted Kennedy, as I've done with many other members, and you say, 'OK, here's what I want, here's what you want. We'll adhere to your principles, but we'll make concessions.'

When it comes to the health of our families, Barack refused to listen to all those folks who told him to leave health reform for another day, another president. He didn't care whether it was the easy thing to do politically - that's not how he was raised - he cared that it was the right thing to do.