I had a look at Overpasses For Obama’s Impeachment web sites. My impression is that low-information conservatives are behind the movement, citizens who don’t know the Constituton and consequenty do not understand how voters need to support the constitutional impeachment process.
After all, organized, Constitution-savvy conservative voters could have tried to elect conservative supermajorities to both houses of Congress in 2012 to at least make Obama a lame duck president for his last four years. But I see no evidence of that having happened.
In fact, I sometimes wonder if “conservative” movement groups like the Overpasses group are actually backed by Obama to give conservatives the impression that the posse is going after Obama to keep lazy conservatives on their couches on election day.