Republicans, don’t just tweet about it. Do something.

Given the Republican Party’s thin majority, any two of its senators can effectively bring the Senate to a halt, blocking nominations and legislation. It may come to that, but collective action would be more effective.

Congress could pass a resolution like the one co-sponsored by Senators Flake of Arizona and Chris Coons, Democrat of Delaware, reaffirming the intelligence community’s finding of Russian meddling in the 2016 election, commending the Justice Department for its investigation and making it clear that the Russian Federation should be held accountable.

As the editors of The Weekly Standard suggested last week, Congress could pass a resolution of censure for the president’s conduct and his subsequent comments. Congress can also take steps with concrete consequences…