CIA was probably the one telling Bush there was no WMD in Irak but he shut them down. Or top CIA (which was put there by Bush) told his agent not to reveal anything, or to reveal the opposite. Bush needed a reason to invade and he got it.
Cheers,
This is something I suggested at the time of the events. Bush and Cheney wanted to go in there so they probably used any thread on WMDs they could twist to justify going into that country, as in the CIA saying we have no evidence but we cannot say it's impossible, or more likely given the dictators desire for weapons there was fear he would get them though the CIA never confirmed they these weapons were there.
Some Presidential Electors are calling for full exposure of the hacking investigation.