Remember 1986? Ronald Reagan was in the White House, Dionne Warwick was topping the charts, and movie audiences swooned as Tom Cruise romanced Kelly McGillis in Top Gun. Children born in 1986 are now adults having children of their own. So it is sobering to realize that 1986 was also the last year in which a divided Congress — a Democratic House and a Republican Senate, to be precise — was able to reach a budget agreement. To the surprise of many, House Budget Committee Chairman Paul Ryan, a leading light among conservative Republicans, and Senate Budget Committee Chairman Patty Murray, a savvy Democrat with a populist streak, reached a modest budget deal at the start of this week that eased the rigid caps on discretionary spending imposed by sequestration in the short term, in exchange for more mandatory spending restraint over the long term.