Brown hasn't run any ads here as he hasn't even declared an intent to run. I personally don't think he'll win even if he does run - his gun stance is offputting to the 2nd Amendment people here.
And the anti-Shaheen ads run here 24/7.
There will be some states that have wild swings like this, other will remain fairly constant. But for the time being, I would chalk up New Hampshire as a Democratic Hold.
Early voting in Georgia. On the 20th of October this old Goldwater conservative voted against both Donald Trump and Hillary Clinton by casting my vote for Gary Johnson. Neither Trump or Clinton belong within a million miles of the Oval Office.
if it is your contention that past elections prove you out...sobeit.