Barack Obama

War in Iraq
Opposes the war and plans to withdraw troops in phases.
Health Care
Proposed a plan that would provide affordable coverage for every citizen to buy and a National Health Insurance Exchange for people who want private insurance. The plan would also require all children to have coverage.
Environment
Supports legislation to reduce greenhouse gas emissions and increase energy efficiency.
Wants to reduce dependence on foreign oil.
Wants to lead an international global warming partnership.
Senior Citizens
Proposes a plan to exempt senior citizens from paying income taxes if they make less than $50,000 a year.
Supports the Save More for Retirement Act, which encourages automatic enrollment in 401(k)s.
Education
Supports increased funding for the Head Start program.
Supports reforming the No Child Left Behind Act.
Supports an increase in Pell Grants.
Economy/Jobs
Wants to create a transitional jobs program with subsidized wages.
Supports the Employee Free Choice Act (freedom to unionize).
Immigration
Supports extra border control agents and better technology.
Supports reducing the fee for immigrants to become citizens and granting citizenship to some illegal immigrants after certain conditions are met.

Sources and further issues: http://origin.barackobama.com/issues/