While the delivery of a State of the Union address is always scrutinised, the style of Mr Biden's speech will be almost as important.

While the delivery of a State of the Union address is always scrutinised, the style of Mr Biden's speech will be almost as important as the substance.

The 80-year-old politician is already the oldest president in US history. If he wins re-election, his second term will expire after he turns 86. Questions about Mr Biden's competence will be unavoidable in the days ahead, and high-profile speeches like this are an opportunity to silence critics - or give them more ammunition. เซกซี่บาคาร่า