WASHINGTON—The Senate headed toward a vote Friday advancing a Republican measure to fund the government through September, as heartsick Democrats implored Senate Minority Leader Chuck Schumer (D., N.Y.

Senate Democrats have "agonized" for days over what "many of them described an impossible choice between two evils ." Those opposed to the bill, The Washington Post said, argued it lacks the typical directives that "dictate how money can be spent,

A generational divide, seen in newer lawmakers’ impatience with bipartisanship and for colleagues who don’t understand new media, has emerged as one of the deepest rifts within the party.