User talk:2600:2B00:8B02:B400:464:EFD7:8BF6:9DE9

Since there is no independent incumbent up for re-election, they are not a major bloc. Moreover, due to the fact there are not any independents who are considered serious contenders in this race, they are not a major bloc. Who is closer is irrelevant. The fact is that nobody except democrats and republicans are major. So they should be the only ones included.