Super Tuesday voting, after the early voting in February, decided nearly half of the delegate votes needed to achieve the 1,237 votes to win the nomination at the 2016 Republican National Convention—595 delegates at stake, to be exact. Super Tuesday holds the primary voting for 11 states in the primary election process. North Dakota held the last caucus on Super Tuesday, but there was no presidential straw poll and all the delegates elected later at its convention in April were unbound. Wyoming took a straw poll, but it was non-binding and no delegates were allocated on Super Tuesday. Leading up to Super Tuesday, a debate between the remaining five candidates took place in Houston on February 25, 2016. Political rhetoric and charges heated up with Cruz and Rubio teaming up to attack Trump.