The move — on Day 28 of a shutdown that has left hundreds of thousands of federal workers without paychecks — represents the first major overture by the president since Jan. 8, when he delivered an Oval Office address making the public case for his border wall. The president and his aides have said he will not budge on his demand for $5.7 billion for his border wall. Democrats have panned the offer and said they will not negotiate until the government reopens.