President Joe Biden has blasted criticism of Nato by his likely 2024 election challenger‚ Donald Trump‚ as "dumb"‚ "shameful" and "un-American". The Democrat assailed Mr Trump for saying he would "encourage" Russia to attack any Nato member that did not meet its defence spending quota. Mr Biden said the remarks underscored the urgency of passing a $95bn (£75bn) foreign aid package for US allies. The bill just passed the Senate‚ but it faces political headwinds in the House. At the...