While progress has been made in the U.S. House of Representatives on topics such as gun control and climate change, U.S. Rep. Sean Casten, D-Downers Grove, said there is more that needs to be done. At a wide-ranging interview with the Northwest Herald’s editorial board, the freshman representative talked about these topics and maintained his support for initiating an impeachment inquiry on President Donald Trump. As a new member, one of Casten’s observations is that there are standards of political performance that would be “laughable” in arenas outside of politics. “We get asked all the time, ‘What are you doing to be bipartisan?’ ” Casten said.