Nationally televised debates of US presidential candidates are usually boring stalemates - but not always. Former US president John F. Kennedy famously looked cooler and more presidential than his rival Richard Nixon in their 1960 debates, which proved crucial in one of the closest results in US election history. Another former US president Jimmy Carter lost big to Ronald Reagan in 1980 and former US vice-president Al Gore's supercilious sighs clearly tilted support to former US president George W. Bush in 2000 when the latter needed it most.
US congressman Paul Ryan accepted the Republican Party's nomination as vice president contender. GOP nominates Romney as presidential candidate
Mitt Romney on Tuesday secured US Republican Party's presidential nomination during a roll call vote at the party's national convention.Romney sticks to Obama songbook on China.Convention gives contrasting views