A former Obama administration official will face a Michigan co-chairman for Donald Trump’s presidential campaign in the race for the suburban Detroit congressional seat held by retiring Republican Rep. Dave Trott. Haley Stevens won the Democratic nomination, edging out four other Democrats in Tuesday’s District 11 race. She was a Treasury official who worked on the auto bailout under Obama. Detroit-area business executive Lena Epstein won the Republican nomination. Although it has traditionally leaned Republican, Trump barely won the district in 2016.