The US House of Representatives is poised to hold a crucial vote on Saturday on a major aid package for Ukraine, Israel and Taiwan and a possible ban on TikTok. The votes on the $95 billion foreign aid and arms bills are expected to begin at 1:00pm (1700 GMT), and embattled Republican Speaker Mike Johnson will need Democratic votes to pass them. The bills are the product of months of acrimonious negotiations, pressure from US allies and repeated pleas for assistance from Ukrainian President Volodymyr Zelensky. Spending bills cost the last Republican speaker of the House his job, and funding fo…