Ideology appears to do a good job of dividing the 191 Yea Republicans from the 52 Nay Republicans, with (predictably) those Republicans opposing the measure being more conservative than those supporting it. There is somewhat of a “two-ends-against-the-middle” pattern on this vote, with the 12 Democrats who voted Yea being more moderate than the remainder of their caucus.
This image is from a new stand-alone DW-NOMINATE that can be run daily as new roll calls are cast. We will have more to say about this software at a later date.
Click image to enlarge
Note: The plot shows only 202 Yea votes because Speaker John Boehner (R-OH) voted Yea but has not cast enough votes to be included in the scaling.