CNN Political Ticker

McCain on Iraq: 'We cannot choose to lose'

Watch Sen. John McCain defend Gen. Petraeus' counterinsurgency strategy.

WASHINGTON (CNN) - Republican presidential hopeful Sen. John McCain took the opportunity on Tuesday to make the case for remaining in Iraq as Gen. David Petraeus and Amb. Ryan Crocker testified about the Iraq war at a U.S. Senate committee hearing.

Related: Obama: Bad timing for Iraq hearings