The fictional Vice President Alexander Throttlebottom spent his time feeding pigeons in the park. The only way he got to see the inside of the White House was to join a tour group with other citizens.
National Review used to mock LBJ when Kennedy was President as "Long Lost Lyndon Bird."
Starting with Mondale Vice Presidents have been assigned tasks, but ultimately it is still the President's responsibility. So even though Kamala did nothing as "Border Czar" the mess is Biden's fault.
In the first two years, Kamala broke many tie votes (33 to be exact). She should be pinned down on those.