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With the Illinois primary, Sen. John Kerry, D-Mass., expects to clinch his party's nomination. But Kerry and President Bush have already stepped into the general election campaign. Margaret Warner discusses the historical implications of an elongated presidential campaign.

After Spain's Socialist Party scored an upset victory in elections, the incoming prime minister Jose Luis Rodriguez Zapatero vowed Monday to make good on a campaign pledge to pull troops out of Iraq unless the United Nations takes charge by…

Following a dramatic scuffle on the floor of the National Assembly, South Korean lawmakers impeached President Roh Moo Hyun for violating his neutrality as president and engaging in illegal campaigning on behalf of a newly formed political party.