Editor's note: This chart features brief summaries of candidates' viewpoints on some issues, based on their statements and records. Most candidates have offered more comprehensive explanations of their positions on these and other issues. More information may be found on their campaign Web sites.
Invest in renewable energies such as wind, solar power
Do not subsidize energy interests; promote sustainable energy
Push for more efficient automobiles, energy sources
Drilling in ANWR
Gas mileage requirements
NOTE AG: Attorney General; ANWR: Arctic National Wildlife Refuge; CAFÉ:
Standards that provide tax and other incentives for consumers to purchase
and alternative fuel vehicles; COPS: Community Oriented Policing Program;
DOMA: Defense of Marriage Act; GLBT: Gay, Lesbian, Bisexual, Transgendered;
NCLB: No Child Left Behind; NMD: National Missile Defense.