Why has the Eastern US been stuck in a trough pattern for most of 2018 causing more rain than usual?

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answers:
theo say: read up on polar jetstream and arctic amplification. professor jennifer francis at Rudgers university is a leading expert
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Pan say: clouds
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Been There, Done That. say: Blame President Trump. He gets blamed for everything.
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L.N. say: Must be Trump's fault. We just need to figure out how the Russians were involved in this.
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