WASHINGTON—The U.S. Senate ratified legislation on Tuesday backing Montenegro’s bid to become the 29th member of the North Atlantic Treaty Organization, a move that could increase tensions with Russian President Vladimir Putin. Montenegro’s bid received bipartisan support from the Senate, which voted 97-2 in favor of the measure. Leading Republicans and Democrats described the overwhelming vote as a signal to Mr. Putin of U.S....

Source: Wall Street Journal March 29, 2017 00:45 UTC