The author’s credibility is undermined, despite his obvious credentials, by his dismissal of anyone who raises the issue of Soetoro/Obama’s NBC status as a “tinfoil hat” wearing “birther.” He gives no explanation for this dismissive attitude toward a genuine issue being raised.
Suppose Trump wins the presidency and we still don't know anymore about Obama's made up past. Do they think Trump is going to stop his investigation of Obama? I don't think so. They fear Trump will do a government internal investigation and will likely find tons of dirt along with a conspiracy to commit, obstruction of justice, and possibly treason. They will live in fear of a Trump Administration.
Ziegler is also a massive palin fan and probably jealous like most of the palinistas that trump is now the tea party fav.