Statement comes after ex-congressman suggests Hagel as Obama running mate . Sen. John McCain , a Republicans , has disagreed with friend John McCain about Obama war . Hagel has criticized John McCain 's campaign for its attacks on Obama .
Statement comes after ex-congressman suggests Hagel as Obama running mate . Sen. Hagel , a Republican , has disagreed with friend John McCain about Iraq war . Hagel has criticized McCain 's campaign for its attacks on Obama .