Rubio faces candidates who are already better known and likely to be better funded. His support for immigration reform could hurt him in early primary states like Iowa and South Carolina. He has little room for error.
Sen. Ted Cruz if the first major candidate to announce he's running for president in 2016. Yet the media is already exhaustively covering the election as a horse race.
Gov. Jerry Brown has brought morality into the debate over immigration reform and climate change. Jerry Falwell did something similar in the 1980s. The results weren't good.
The budget presents a thorny political challenge for congressional Republicans: Fiscal hawks call for a tighter focus on debt reduction, while defense hawks say a strong US military is paramount.