[identity profile] scott-sanford.livejournal.com 2013-10-07 03:46 pm (UTC)(link)
Article II Section 4 says, "The President, Vice President, and all civil Officers of the United States shall be removed from Office on Impeachment..." so it would seem so.

Indeed, I find a list of impeached elected officials; the very first one was Senator William Blount, dismissed from office on 14 January 1799. No member of the House of Representatives has been impeached yet, but the legal groundwork is present.