The Senate’s top Republican Thursday warned that legislation enacted over President Barack Obama’s veto to allow families of Sept. 11 victims to sue Saudi Arabia in U.S. courts may have “unintended ramifications” and that lawmakers should discuss fixes to the measure. Majority Leader Mitch McConnell, R-Ky., said the White House was too slow to warn about the “potential consequences” of the measure. Both the House and Senate overwhelmingly overrode Obama’s veto of the measure on Wednesday. McConnell said he told the president recently that the 9/11 victims bill “was an example of an issue that we should have talked about...