Through Thursday Team Obama will have spent at least $106 million in general election ads – more than twice what the Mitt Romney campaign has bought. This buy will bring his total media purchase so far this cycle to almost $190 million.

However, GOP groups, such as American Crossroads and its affiliate Crossroads GPS and Restore Our Future, the super PAC backing Mitt Romney have helped to give Republicans an overall spending advantage in recent weeks for ad spending compared to the Obama re-election campaign and its supporters…

Voters in these battleground states have already complained they have been inundated with political commercials – which in recent months have been largely attack spots. However, from all indications that onslaught will continue. Republican-leaning groups are expected to spend around $1 billion in presidential and congressional races this election cycle with a majority of that money being devoted to ad spending, sources familiar with the groups have told CNN.