House Minority Leader Nancy Pelosi and Senate Minority Leader Chuck Schumer appear at a news conference at the U.S. Capitol June 28. Democrats have been hopeful about making big gains in the midterm elections, but a new NPR/PBS NewsHour/Marist poll shows Republican enthusiasm surging.

House Minority Leader Nancy Pelosi and Senate Minority Leader Chuck Schumer appear at a news conference at the U.S. Capitol June 28. Democrats have been hopeful about making big gains in the midterm elections, but a new NPR/PBS NewsHour/Marist poll shows Republican enthusiasm surging