Attorney General William Barr made a last-minute push Monday to persuade the administration to modify its position in the Obamacare dispute that will be heard at the Supreme Court this fall, arguing that the administration should pull back from its insistence that the entire law be struck down. ... Barr and other top advisers have argued against the hard-line position for some time, warning it could have major political implications if the comprehensive health care law appears in jeopardy as voters head to the polls in November. According to four sources familiar with the meeting, Barr argued for modifying the...