Seen here:
EARNEST: Well, again, I think it's hard to take seriously from some members of Congress who deny the fact that climate change exists, that they should have some opportunity to render judgment about climate change agreements.
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[The President] shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two thirds of the Senators present concur...
-- Article II, Section 2
What's hard to take seriously is anyone from this administration.
