Where do you go next after you’ve written speeches for Hillary Clinton, worked in the Obama White House, and helped defend environmental protections under Sen. Charles Schumer? For Kristina Costa, next is McCourt, where she hopes to work on the quantitative elements of policy work and have time for a more contemplative look at policy issues. Currently a senior fellow at the Center for American Progress where she focuses on energy and climate change, Costa says she is especially proud of helping Schumer block an effort to repeal limits on methane emissions from oil and gas operations on public lands.