Team Obama thinks they have this won already.

[J. J.]

Team Obama think they have won already.

Team Obama is singular, so it should be "thinks," i.e., "SCOTUS thinks," or "the DNC thinks," versus "the Justices think," or "the members think."

The headline is misleading.  I think, singular, Team Obama, and Team Romney are both in full panic mode.

[J. J.]

Team Obama think they have won already.

Team Obama is singular, so it should be "thinks," i.e., "SCOTUS thinks," or "the DNC thinks," versus "the Justices think," or "the members think."

The Supreme Court and the DNC are individual establishments. Team Obama is a collective.

Team Obama is. If you agreed with yourself, you would have said "Team Obama are".

"The United States is a collection of different states, which are as follows:"

"The Borg Collective is attacking, and five of them are already in the shuttle bay." 

Since the article has no substance, we might just as well argue about the grammar.