I don't think [pot] is more dangerous than alcohol.

Stock market risk is ok, but not for Social Security.

The Affordable Care Act is here to stay.

Long before being nerdy was cool, there was Leonard Nimoy. Leonard was a lifelong lover of the arts and humanities, a supporter of the sciences, generous with his talent and his time. And of course, Leonard was Spock. Cool, logical, big-eared and level-headed, the center of Star Trek’s optimistic, inclusive vision of humanity’s future. I loved Spock.

This is the defining issue of our time. This is a make-or-break moment for the middle class and for all those who are fighting to get into the middle class.

There is enough oil out there for world demand. It is true that a lot of what's driving oil prices up right now is not the lack of supply. There's enough supply.

I just want people to know the facts and science and the information... measles is preventable.