Obama - NASA will partner with private firms to send humans to Mars by 2030
Source: http://edition.cnn.com/2016/10/11/opinions/america-will-take-giant-leap-to-mars-barack-obama/index.html?adkey=bn
The next step is to reach beyond the bounds of Earth's orbit. I'm excited to announce that we are working with our commercial partners to build new habitats that can sustain and transport astronauts on long-duration missions in deep space. These missions will teach us how humans can live far from Earth -- something we'll need for the long journey to Mars.
Source: http://edition.cnn.com/2016/10/11/opinions/america-will-take-giant-leap-to-mars-barack-obama/index.html?adkey=bn