From this morning's Earlybird:

• "Rep. Jeff Flake (R-Ariz.) on Tuesday filed yet another resolution aimed at triggering a House ethics probe of the PMA Group, the defense lobbying firm under criminal investigation for allegedly providing improper campaign contributions," Roll Call (subscription) reports. "Flake's resolution, the fourth of its kind, is more narrowly focused than the previous three: It asks the ethics committee to examine the relationship between fiscal 2009 earmarks for PMA clients and campaign contributions from PMA CEO Paul Magliochetti and his relatives."

• "The battle over a bill that would ease union organizing is zeroing in on lawmakers in three states -- Pennsylvania, Arkansas and Colorado," the Wall Street Journal reports. "Business and labor are pressuring three key senators who are up for re-election in 2010, sparing little expense as they ratchet up television and radio ads, and recruit well-connected lobbyists."

• "Alliant Techsystems, a defense company with a relatively low profile, is preparing for growth even as the Pentagon works to cut what it spends on weapons systems," The Hill reports. "The Minnesota-based company, known as ATK, has increased its political giving and reached out to a number of offices on Capitol Hill to raise its profile in Congress and the administration."