I thought that this list would be of some interest to political junkies. It ranks the Senators based on how often they voted with Democrats/Republicans on 95 non-unanimous bills so far.
Also, I created an additional feature that allows you to cast your vote on legislation, and see which Senators most agreed with you.
The methodology is simple. If a Senator votes in such a way that he is voting only with members of the Democratic Party, then he is being very partisan, and his score pushes him down. If he votes only with Republicans, he is also partisan, and goes up. If he votes with half Democrats and half Republicans, he moves towards the center.
This means that someone can vote against most members of his party and be more "partisan." (If only 5 Republicans oppose a bill, and 95 Senators support it, the 5 Republicans are being 'partisan'.)
Here is a sample of the list, copied directly. Biden is at the top, but only because he missed so many votes. And Johnson is at the bottom for obvious reasons.
(Full List is Here)
1. | Biden | DE | 80518 | 73 Votes |
2. | Menendez | NJ | 79886 | 95 Votes |
3. | Dodd | CT | 79730 | 83 Votes |
4. | Whitehouse | RI | 79651 | 95 Votes |
30. | Murray | WA | 77247 | 95 Votes |
31. | Obama | IL | 77038 | 94 Votes |
40. | Nelson | FL | 75720 | 94 Votes |
41. | Cantwell | WA | 75514 | 93 Votes |
42. | Conrad | ND | 75034 | 94 Votes |
43. | Carper | DE | 74876 | 93 Votes |
44. | Webb | VA | 74757 | 95 Votes |
45. | Tester | MT | 74594 | 95 Votes |
46. | McCaskill | MO | 73344 | 95 Votes |
47. | Landrieu | LA | 72028 | 94 Votes |
48. | Lieberman | CT | 71777 | 95 Votes |
49. | Bayh | IN | 70573 | 94 Votes |
50. | Nelson | NE | 64671 | 94 Votes |
51. | Snowe | ME | 48166 | 95 Votes |
52. | Specter | PA | 44146 | 94 Votes |
53. | Collins | ME | 43566 | 95 Votes |
54. | Smith | OR | 42974 | 95 Votes |
55. | Voinovich | OH | 40748 | 94 Votes |
56. | Coleman | MN | 40656 | 94 Votes |
57. | Stevens | AK | 32573 | 88 Votes |
58. | Domenici | NM | 31843 | 94 Votes |
59. | Murkowski | AK | 30920 | 91 Votes |
97. | Inhofe | OK | 13353 | 89 Votes |
98. | DeMint | SC | 12471 | 93 Votes |
99. | Coburn | OK | 10490 | 91 Votes |
I hope this provides interesting information. Something I found interesting was that John McCain only voted 61 times, whereas the other presidential candidates (aside from Biden) had no problem showing up and casting votes.
Also, it's interesting that Coburn is the most extreme Senator, but I guess that's probably because of some of his crazy "Nay" votes, like on minimum wage.