district         incumbent       party  first elected                                      results
0  colorado 1     diana degette  democratic           1996                                 re - elected
1  colorado 2        mark udall  democratic           1998                                 re - elected
2  colorado 3      john salazar  democratic           2004                                 re - elected
3  colorado 4  marilyn musgrave  republican           2002                                 re - elected
4  colorado 5       joel hefley  republican           1986                      retired republican hold
5  colorado 6      tom tancredo  republican           1998                                 re - elected
6  colorado 7      bob beauprez  republican           2002  retired to run for governor democratic gain

Table as JSON:
{"district":{"0":"colorado 1","1":"colorado 2","2":"colorado 3","3":"colorado 4","4":"colorado 5","5":"colorado 6","6":"colorado 7"},"incumbent":{"0":"diana degette","1":"mark udall","2":"john salazar","3":"marilyn musgrave","4":"joel hefley","5":"tom tancredo","6":"bob beauprez"},"party":{"0":"democratic","1":"democratic","2":"democratic","3":"republican","4":"republican","5":"republican","6":"republican"},"first elected":{"0":1996,"1":1998,"2":2004,"3":2002,"4":1986,"5":1998,"6":2002},"results":{"0":"re - elected","1":"re - elected","2":"re - elected","3":"re - elected","4":"retired republican hold","5":"re - elected","6":"retired to run for governor democratic gain"}}