Must-read Matea Gold for WaPo:

A senior aide to Rep. Colleen W. Hanabusa (D-Hawaii) told his colleagues late last month that the nation’s top drug lobby had agreed to run a campaign supporting the congresswoman’s challenge to Democratic Sen. Brian Schatz and wanted to coordinate it with her strategists.

Such an effort, described in an e-mail obtained by The Washington Post, could run afoul of campaign finance laws, which prohibit candidates and their staff from substantial discussions with interest groups about their independent political activities.