Eight Senate Republicans joined Democrats in blocking a six-bill funding package Thursday, greatly increasing the probability of a partial government shutdown. All Senate Democrats opposed ending debate on the bill, as leaders demanded restraints on federal immigration enforcement. Republicans control the White House, Senate, and House. On Wednesday, Schumer and leading Democrats demanded a separate vote on the homeland security funding bill while pledging support for the remaining five bills funding other federal agencies. Leading Democrats had previously granted their blessing to the homeland security bill, which was written by a bicameral, bipartisan group.