(Oh, and by the way, off-topic, during the election there were many, many Metro employees and operators wearing “Obama” buttons while “working.” A clear violation of policy, reported, but ignored by Metro HQ.)
The metro stations were plastered with Obama-related signs from the election through and past the election. Fortunately, I only ride the system maybe twice a year. I couldn’t have handled seeing that every day for 3-4 months. And I certainly don’t recall anything like that for Reagan or either Bush election/inauguration.