What did Trump ask during his phone call with Volodymyr Zelensky on July 25th, 2019?

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The date a source was created is considered part of its historical context intended audience purpose point of view

Is the weather changing? consider the data of severe weather that includes tornadoes occurring throughout the u. s. over the last four years. compare the severe weather for the last three years. then compare the first three months of 2017 with that data. based on previous years, what might the prediction be for weather during 2017?