CQ Politics is an insider's publication for political junkies, and is generally very reliable for straight forward analysis of federal races.  They have released their latest analysis of the races in Maine.

They give the nod to Obama, although they do spin the old First CD versus Second CD story - holding out the possibility of a McCain victory in Maine's second district. 

Don't hold your breath.

When it comes to the Collins v. Allen contest they are clearly leaning in favor of Collins noting, "Collins, meanwhile, has some significant advantages as she seeks a third Senate term, including strong statewide job approval ratings and an ample campaign treasury.

However, they acknowledge that "... she faces a tough challenge from Allen, who also is well funded and has a base in the Portland-centered district where he regularly won his House races with 60 percent of the vote or more. CQ Politics still gives Collins the advantage  rating the Senate race Leans Republican.

In the First Congressional District CQ Politics gives the advantage to Pingree highlighting her clear fundraising advantage as well as the fact the district leans Democratic. CQ does mention that Summers is a "capable candidate" but rates this race Democrat Favored.