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But opinion polls suggest support for Israel among the American public is dwindling.

They are invisible in opinion polls, and could easily sway the final result.

The party had lost a remarkable 27-point lead in opinion polls and failed to win an election for the fourth time in a row.

They went into these elections with the challenge of proving that they could match in votes what the opinion polls had suggested they could.

Nigel Farage's latest party is proving, so far at least, that healthy opinion poll figures can translate into actual votes and – in some places at least -- actual victories.