with us today. >> reporter: thanks, bill. martha: it has become one of the hottest topics of the campaign season, the time that mitt romney spent as ceo of bain capital. so how do all these claims actually stack up with the facts? chief washington correspondent james rosen is live in our d.c. bureau with more on this. james, tell us how this is working out in the fact check. >> reporter: we begin at the beginning, mart that. bain capital is a privately-owned investment firm head quart erred in boston and employing about 900 people. it handled private and public equity deals. that means buying ownership next ising companies and trying to increase their market shares and venture capital deals, investing in promising start up. bain has made private equity investments in more than 240 companies, by its own estimate manages some 66 billion in assets. mitt romney was vp of bain's