Washington (CNN) - At the Republican National Convention in 2012, Mitt Romney's campaign featured a series of touching, biographical videos that showed a more personal side to the former Massachusetts governor.
But it was too late. By that point, just a little more than two months before Election Day, Democrats had spent millions trying to define Romney as a greedy, heartless politician.
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Supporters and pundits argued the GOP presidential hopeful should have showed those videos earlier in the cycle, humanizing him before Democrats had a chance to shape their own image of the candidate.
The National Republican Senatorial Committee, a group that aims to elect Republicans to the Senate, is trying to avoid making the same mistake.
Just under eight months before the midterms, the group on Wednesday released a 45-minute documentary featuring six GOP candidates in races where Republicans hope to make gains and ultimately retake control of the Senate.
Officials from the group said the video was produced in-house by NRSC staff and will be featured at house parties, as well as online.
Split up into six biographical videos, the video includes interviews with the Senate candidates, as well as with their friends and families.
Three of the Senate candidates–Reps. Tom Cotton of Arkansas, Steve Daines of Montana, and Bill Cassidy of Louisiana–are challenging incumbent Democrats.
The other three–former Gov. Mike Rounds of South Dakota, former Michigan Secretary of State Terri Lynn Land, and Rep. Shelley Moore Capito of West Virginia–are running in open races.
All six contests are considered toss-ups or potential pick-ups for Republicans.
Most of the candidates are considered the likely Republican nominees in their respective states, though some are running in more crowded primaries than others. Cassidy in Louisiana, for example, faces two other primary opponents.
While the NRSC doesn't get involved in Republican primaries, spokesman Brad Dayspring said they featured Cassidy because he attended their "candidate training" session.
Dayspring added they can't take sides, but "we can tell the stories of good candidates and put them out there."
The NRSC plans on featuring more candidates in another wave of videos this year.