Voters in the eastern German states of Thuringia and Saxony will head to the polls on Sunday in state parliamentary elections that could upend the balance of power in both states and reverberate nationwide. Polls ahead of Sunday’s election have put the far-right Alternative for Germany (AfD) in the clear lead in Thuringia and narrowly trailing the centre-right Christian Democrats (CDU) in Saxony. The election results will decide the balance of power in the state parliaments in Thuringia and Saxony, which each hold considerable power over regional matters. Strong showings by the AfD and another…