In the first German election since Europe's debt crisis erupted four years ago, voters are likely to give Angela Merkel a third term on Sunday, but may force her into a coalition with her leftist rivals and catapult a new anti-euro party into parliament.
The vote is being closely watched by Berlin's European partners, with some hoping Chancellor Merkel will soften her approach towards struggling euro states like Greece if she is pushed into a 'grand coalition' with the Social Democrats (SPD).
Voting is due to begin at 8 a.m. (0600 GMT) and the first exit polls will be published at 6 p.m. (1600 GMT). Some 62 million Germans are eligible to vote.
More top news
The presumptive Republican nominee was speaking to a crowd in San Diego's convention centre, whilst 1,000 people demonstrated outside.
There will be sunny spells for many but heavy showers will spread across the UK in the afternoon.
Children's Commissioner review found 28% of children in need of support were sent away because their illness was not deemed serious enough.