In this task, you are given a statement spoken by a politician in natural language. Your task is to generate the subject of the discussion for the given statement. The subject generated is not necessarily a part of the given input. Your answer should contain one or more words.

Gas prices have doubled because Obama opposed exploring for energy in Alaska. He gave millions of tax dollars to Solyndra, which then went bankrupt. And he blocked the Keystone pipeline. So we will all pay more at the pump.
climate-change

Says using E-Verify is a fair amount of cost, about $20 per person that does not match.
immigration

Thirty U.S. cities have Triple A baseball teams and virtually everyone of them [is] playing in government owned ballparks.

baseball