Lincoln Chafee

…and defeated the Republican incumbent Lincoln Chafee. After taking office in 2007, he became known as a liberal Democrat, though he did not always vote with the party. He notably opposed Pres. Barack Obama’s administration on certain cap-and-trade provisions meant to reduce effects of climate change, arguing that they did…

…in office in 1999, when Lincoln Chafee (also a Republican) was appointed to fill his father’s seat; he was elected to one additional term.