I wonder if this was the big endorsement that Thompson hinted at yesterday:

We make this endorsement on the basis of much research, having interviewed Sen. Thompson and some of his opponents, as well as examining what they have all said and done. We conclude that Thompson is a solid conservative whose judgment is grounded in our principles.
In his Senate years, Mr. Thompson compiled an American Conservative Union lifetime rating of 86.1, which is higher than both Sen. John McCain (82.3) and Rep. Ron Paul (82.3). The Club for Growth has praised Thompson as someone who has a strong commitment to limited government, free enterprise and federalist principles.

On the issues that matter most to conservatives, Sen. Thompson’s positions benefit from their clarity. He is solidly pro-life. He said that he was in favor overturning Roe v. Wade because it was “bad law and bad medical science.” As the National Right to Life Committee said in its endorsement of him Nov. 13, 2007, “The majority of this country is opposed to the vast majority of abortions, and Fred Thompson has shown in his consistent pro-life voting record in the U.S. Senate that he is part of the pro-life majority.”
Thompson’s record is solid on voting to preserve gun owners’ rights, cut taxes, reduce government spending and drill for oil in Alaska’s Arctic National Wildlife Refuge. He has voted consistently against gay marriage. Thompson is by no means perfect. He strongly supported the McCain-Feingold bill, did not support the impeachment of Bill Clinton on perjury and more than once voted with the trial lawyers against limitations on liability in defective product and medical malpractice cases.
We like the way Thompson unhesitatingly attacks the liberal ideologues and their activists such as MoveOn.org and the ACLU, and the way he reaches out to those we knew as the Reagan Democrats.

The question now is whether Sen. Thompson will do what he has not yet done: Take the advantages he is given by his intelligence, his principles, his political skills and this endorsement and make the best use of them.
[…]
Sen. Thompson, you suffer, like most conservatives, from the built-in problem of not being a professional politician. It’s precisely as Rush Limbaugh said of you: “The problem with Thompson is, and a little bit with me, is I’m a depth guy. I like depth. Television doesn’t reward depth. Television rewards zingers, one-liners, cutesyisms. Fred Thompson produced a brilliant 17-minute video that was on YouTube that explains everything about every issue that he cares about. It’s clear he’s thought deeply about a whole lot.”

Well, I would rather he suffered from depth then being shallow and lacked a knowledge of the problems facing this country and how to tackle them.