Climate advocates plan $11 million ad campaign targeting ‘key senators’

Senate Majority Leader Harry ReidHarry ReidRepublican failure Senate about to enter 'nuclear option' death spiral Top GOP senator: 'Tragic mistake' if Democrats try to block Gorsuch MORE (D-Nev.) plans to bring a bill to the floor this summer, and is gathering the Senate Democratic caucus Thursday for a meeting to discuss the legislation.

Climate advocates are struggling to keep greenhouse gas limits in the mix as the bill takes shape.