Hispanic Democrats drew a red line Wednesday in budget negotiations, saying they cannot support any year-end spending bill unless it reduces the government’s ability to detain illegal immigrants ahead of deportation. The Democrats also said they want to eliminate all money for the border wall — not the $5 billion President Trump is seeking, nor even the $1.6 billion that Senate Democrats have said they’re willing to spend. “We urge the Committee to provide zero funding for the border wall,” the chair and vice chair of the Congressional Hispanic Caucus said in a letter to GOP leaders. “Five billion dollars...