NASA Administrator Charles Bolden was interviewed by Candy Crowley this morning on CNN's State of the Union.
Click here to watch the video of the interview.
Click here to read the transcript.
Regarding when NASA astronauts will fly again on an American-built vehicle, Bolden said:
... [W]ith American innovation and American industry's capability, we are going to demonstrate the capability of taking cargo to orbit early in 2012. So we're months away from that. We're hopeful of starting to ask for proposals from industry in the early part of next year on a commercial crew vehicle, and I would say we're talking about anywhere from three years to five years after we let the first contract.
So between 2014 and 2015, I am very hopeful that you will see American astronauts climb back aboard American-produced spacecraft to go to the International Space Station, and not very long after that start flying some test hops on a NASA-led effort to explore beyond low Earth orbit, go to deep space.