Hillary Clinton introduced running mate Tim Kaine as "a progressive who likes to get things done", joining him in the crucial battleground state of Florida to help kick off next week's Democratic National Convention.

President Barack Obama called for aggressive spending to boost growth and for higher taxes on the rich, laying out an election-year vision for America in a budget that drew heavy fire from Republicans for failing to curb huge deficits.

Victims of the shooting rampage at Virginia Tech college in the United States were “graduating” alongside their classmates tonight.