Current composition of the Senate

Elected 2012 (Class 1): 23 D   8 R  1 I  (Total: D 53, R 45, I 2)
Elected 2010 (Class 3): 11 D  24 R  0 I  (Total: D 51, R 47, I 2)
Elected 2008 (Class 2): 20 D  15 R  0 I  (Total: D 57, R 41, I 2)
Elected 2006 (Class 1): 22 D   9 R  1 I  (Total: D 49, R49, I 2)
Elected 2004 (Class 3): 15 D  19 R  0 I  (Total: D 44, R55, I 1)
Elected 2002 (Class 2): 10 D  22 R  0 I
Elected 2000 (Class 1): 19 D  14 R  1 I

Current composition of the House:

2016: D ---   R ---   I - (115th Congress)
2014: D 188   R 247   I 0 (114th Congress)
2012: D 201   R 234   I 0 (113th Congress)
2010: D 193   R 242   I 0 (112th Congress)
2008: D 257   R 178   I 0 (111th Congress)
2006: D 235   R 199   I 1 (110th Congress)
2004: D 202   R 232   I 1 (109th Congress)
2002: D 205   R 229   I 1 (108th Congress)

Presidential Electoral vote

2016:
2012: D: 332   R: 206
2008: D: 365   R: 173
2004: D: 252   R: 286
2000: D: 266   R: 271
1996: D: 379   R: 159
1992: D: 370   R: 168
1988: D: 111   R: 426
1984: D:   13   R: 525