As when Erie Railroad Co. v. Tompkins was decided seventy years ago, federal courts today are seen as more favorable to corporate and business interests than many of their state-court brethren. The current situation is due in no small part to federal courts\u27 comparatively pro-defendant approaches to summary judgment, class certification, and other procedural issues. The Court\u27s decision in Bell Atlantic Corp. v. Twombly, which tilts federal pleading standards in favor of defendants, will likely have similar federalism implications. This Article presents a straightforward argument that the Erie doctrine may require federal courts to follow state-law standards on summary judgment, class certification, and pleading. This argument has str...