The U.S. Chamber of Commerce is hosting a "fly-in" on Wednesday that's expected to draw to D.C. scores of executives from local chambers, businesses and associations nationwide. Here they will take marching orders from the lobby group to fight pending health care legislation in the Senate.

The chamber's game plan calls for executives to meet at its headquarters from 10am to 11:45am before fanning out for meetings with senators and staffers later in the day.

A chamber email invite says "we need your voice on this issue--and your senators need to hear from you first hand." The call to action concedes that the Senate bill "has some improvements over the House version," that passed earlier this year, but quickly adds that the Senate's "efforts to protect American jobs and revive the economy fall flat."