If you're interested in this you might also be interested in Simon Jackman's ideal point estimates for the Senate and House: http://jackman.stanford.edu/ideal/

If you're interested in this you might also be interested in Simon Jackman's ideal point estimates for the Senate and House: http://jackman.stanford.edu/ideal/currentSenate/d3/long.html http://jackman.stanford.edu/ideal/currentSenate/d3/long.html http://jackman.stanford.edu/ideal/currentHouse/d3/long.html http://jackman.stanford.edu/ideal/currentHouse/d3/long.html His blog (which among other things has links to the roll call data in RData form): http://jackman.stanford.edu/blog/ http://jackman.stanford.edu/blog/