MoveOn Warns Of "Cutting Obama Off At The Knees" chooses some rather vivid diction in its latest petition email to members, the subject line of which reads, "Cutting Obama off at the knees"--a warning that Senate Republicans are trying to thwart the president's climate change agenda by offering legislation to limit the EPA's regulation of greenhouse gases. Given that MoveOn has complained about President Obama's effectiveness on health care, the word choice might reflect some of those fears as Democrats think ahead to the next points of order on Obama's agenda, the first of which being climate change legislation.