I understand that this was overshadowed by the baseball game shooting and by the news that Mueller is investigating Trump for obstruction, but this seems quite a big deal to me. The senate is taking it in their hands to address Russia and providing a check on Trump's power in setting Russian policy, and does so in an overwhelming majority fashion.
It makes me wonder if Republican Congress already sees Trump as a dead duck but is publicly trying to keep his administration afloat until things start getting real as a result of Mueller's investigation.