Out of almost 160 bills in state legislatures, only a small handful of anti-ESG considerations have become law. Maria Lettini already knew of the backlash against ESG investing when she took over as chief executive of US SIF last year.US SIF is an advocacy group that supports sustainable investing, which encourages investors to consider a wider set of risks including the environment, social issues and corporate governance in hopes of improving their returns.But returning to the U.S.