ATLANTA (Reuters) - Lawyers for President Barack Obama on Wednesday sought to stave off the biggest legal challenge yet to his landmark healthcare reform, telling a court that its key provision is grounded in Congress' right to regulate commerce. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=DqSY6DTLwgE:Cni8Jp1I5QY:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=DqSY6DTLwgE:Cni8Jp1I5QY:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/DqSY6DTLwgE)
Source: Reuters.