House Democrats’ slim majority made even skinnier by President-elect Joe Biden’s plan to tap three members to join his administration creates challenges for Speaker Nancy Pelosi and the rest of the Democratic caucus.

It means that small factions of the party such as more centrist Democrats or far-left “Squad” members could band together to wield power and stop legislation that they find objectionable. And it creates the environment where Republicans may be able to use procedural tools to their advantage even more.