Why does the GOP persist?

Why do they persist?

The evidence is clear: voters oppose a wall, oppose the shutdown, and favor reopening the government without funding the wall, seeing far better ways to protect the border. …

And voters are clearly blaming Trump and the GOP for a shutdown few Americans want. Republicans are cast as the villains in this drama by 20-point margins.

Yet, they persist. CONT.

Mark Mellman (Mellman Group), The Hill

Recent polls: President Trump, Congress and the shutdown