HOME / Politics : Who's winning, who's losing, and why. Back to the Article House Race Tracker Term: How many years the incumbent has been in office. There are only five incumbent Republicans on the list. Their names are in capital letters. Tea: This denotes whether the republican candidate has Tea Party support. McCain: Is a district one of the 48 that John McCain won. 08%: Is how the incumbent (almost always a Democrat) did in the last election. If the entry is '0' then this is an open seat. Obama: The president's voting percentage from 2008 in that district. PVI: This is the Cook Partisan Voting Index. A positive number means the district leans Republican. A negative number means it leans Democratic. HCR: How the member voted on health care reform. Stim: How the member voted on the stimulus bill. C&T: How the member voted on "cap and trade" energy legislation. For the true geeks among you, go to this page and you'll be able to manipulate the columns yourself.