AP Photo/Jose Luis Magana

In this Sept. 6, 2017 photo, Senate Minority Leader Chuck Schumer of N.Y., accompanied by House Minority Leader Nancy Pelosi of Calif., left, and others members of the House and Senate Democrats, speaks during a news conference on Capitol Hill in Washington. It’s beginning to look like Congress’ election-year battle over immigration could end up in stalemate or a narrowly focused bill. The kind of broader measure that President Donald Trump has proposed is running into trouble. The reasons: Deep gaps between the two parties, internal divisions particularly among Republicans and political incentives that might leave each side content with a minimal compromise or even nothing at all.