Hopes for a quick compromise on immigration were dealt a blow Tuesday after House Speaker Dennis Hastert said he wanted to take a "long look" at a Senate bill offering possible citizenship to millions of illegal immigrants. Hastert said hearings on the Senate bill should be held before appointing anyone to a House-Senate committee to negotiate a compromise immigration bill. Later, he said he was unsure what the House's next move would be. "We're going to take a long look at it," Hastert said late Tuesday. House Majority Leader John Boehner agreed. "I think we should know clearly what's in the Senate bill," Boehner said. But he added there are lots of ways to understand its contents. Sen. John Cornyn, R-Texas, also scheduled a hearing for Monday to review provisions in the bill requiring employers to verify that their workers are legal. Cornyn said he opposes a provision allowing workers to use up to 20 documents to verify they are legal workers. Also, the Department of Homeland Security has raised concerns about how quickly it must have in place an electronic system that employers will use to verify their workers legal status, Cornyn's spokesman Don Stewart said.