If Fred publicly calls on the President to withdraw this brief, then he'll score big points with voters. As an attorney, he can explain well why this brief is actually very anti-2nd Amendment.
Further, it is possible that it'll actually get done - I'm not sure that this was even on Bush's radar. It sounds suspiciously like some career gov't lawyer's way of screwing individual rights in a fait accompli. Bush might decide to withdraw the brief if he knows about it, comes under pressure from Republican candidates, and if the NRA actually emails its members and asks them to melt the White House phone lines. Of course, I'm not holding my breath - Bush isn't exactly a friend of the 2nd.
You could be right, but it's his responsibility. I won't belabor the number of issues that weren't on his radar.
It seems to have been written by the BATFE. Their chief counsel's name is on it, all rest of the government lawyers, show as just being "Department of Justice", of which the BATFE is a part, but the rest are Deputy or Assistant Attorney Generals (IE. HQ types), other than Solicitor General who is in effect the lawyer for not just the Justice Department, but for the whole federal government.
Letting the BATFE write a brief on the meaning of the Second Amendment is definitely letting the coyote guard the chicken coop.