Respondents were asked, "We'd like to get your feelings toward some political figures using something we call a feeling thermometer. A rating of 100 degrees means that you feel extremely favorable and warm toward the person. A rating of 0 degrees means that you feel extremely unfavorable and cold toward him or her. A rating of 50 degrees means that you feel neither warm nor cold toward him or her. Or if you haven't heard enough about the person to rate him or her, just say so. On this 0 to 100 scale, how do you feel about: The Republicans in Congress" Measurement of Party ID for this figure is based on two questions. First, respondents were asked whether they consider themselves to be a Democrats, Republicans, independents, other, or not sure. Those who responded that they are independents or "other" were then asked if they lean toward either the Democrats or Republicans. If they indicated that they lean toward one party or the other, they are considered Democrats or Republicans for the purposes of this figure. Only "pure" independents or members of a third party who indicate that they have no preference for Democrats vis-a-vis Republicans are considered independents. Respondents who answered that they are "not sure" for either of the two aforementioned questions are not incorporated into this figure.

Respondents were asked, "We'd like to get your feelings toward some political figures using something we call a feeling thermometer. A rating of 100 degrees means that you feel extremely favorable and warm toward the person. A rating of 0 degrees means that you feel extremely unfavorable and cold toward him or her. A rating of 50 degrees means that you feel neither warm nor cold toward him or her. Or if you haven't heard enough about the person to rate him or her, just say so. On this 0 to 100 scale, how do you feel about: The Republicans in Congress" Party identification is calculated according to the PID7 variable, a seven point scale of party identification.

Respondents were asked, "We'd like to get your feelings toward some political figures using something we call a feeling thermometer. A rating of 100 degrees means that you feel extremely favorable and warm toward the person. A rating of 0 degrees means that you feel extremely unfavorable and cold toward him or her. A rating of 50 degrees means that you feel neither warm nor cold toward him or her. Or if you haven't heard enough about the person to rate him or her, just say so. On this 0 to 100 scale, how do you feel about: The Republicans in Congress" The ideology measure is based on respondent self-placement in response to the following question: "On a scale from 1 to 7, where 1 is extremely liberal, 7 is extremely conservative, and 4 is exactly in the middle, where would you place yourself?" The placements are further classified such that 1 is extremely liberal, 2 is very liberal, 3 is somewhat liberal, 4 is moderate, 5 is somewhat conservative, 6 is very conservative, and 7 is extremely conservative.

Respondents were asked, "We'd like to get your feelings toward some political figures using something we call a feeling thermometer. A rating of 100 degrees means that you feel extremely favorable and warm toward the person. A rating of 0 degrees means that you feel extremely unfavorable and cold toward him or her. A rating of 50 degrees means that you feel neither warm nor cold toward him or her. Or if you haven't heard enough about the person to rate him or her, just say so. On this 0 to 100 scale, how do you feel about: The Republicans in Congress" Tea Party identification is based on the following question, also asked in the survey: "Suppose the Tea Party movement organized itself as a political party. When thinking about the next election for Congress, would you vote for the Republican candidate from your district, the Democratic candidate from your district, or the Tea Party candidate from your district?" Those who responded "Republican candidate" are considered Republicans (non-Tea Party movement) and those who responded "Tea Party candidate" are considered Tea Party Republicans.

Respondents were asked, "We'd like to get your feelings toward some political figures using something we call a feeling thermometer. A rating of 100 degrees means that you feel extremely favorable and warm toward the person. A rating of 0 degrees means that you feel extremely unfavorable and cold toward him or her. A rating of 50 degrees means that you feel neither warm nor cold toward him or her. Or if you haven't heard enough about the person to rate him or her, just say so. On this 0 to 100 scale, how do you feel about: The Republicans in Congress" Gender is calculated according to the GENDER variable.

Respondents were asked, "We'd like to get your feelings toward some political figures using something we call a feeling thermometer. A rating of 100 degrees means that you feel extremely favorable and warm toward the person. A rating of 0 degrees means that you feel extremely unfavorable and cold toward him or her. A rating of 50 degrees means that you feel neither warm nor cold toward him or her. Or if you haven't heard enough about the person to rate him or her, just say so. On this 0 to 100 scale, how do you feel about: The Republicans in Congress" Education is calculated according to the EDUC variable.