"There's a lot riding on these results in the UK. Labour is braced for a bad night, with Welsh Secretary Peter Hain predicting "terrible" results for the party. David Cameron will want to maintain the Conservatives' momentum following their top-placed finish in the county council elections. The UK Independence Party are confident they can finish second but the Lib Dems are determined to deny them. Voters will deliver their verdicts on the Scottish National Party's and Plaid Cymru's performance in their respective devolved governments. And while the British National Party believe they can pick up their first European seat, the Greens are hoping to increase their tally of two MEPs."