Earlier Wednesday Henry Waxman, chairman of the House Committee on Oversight and Government Reform, asked Attorney General Michael Mukasey to “investigate whether former professional baseball player Roger Clemens committed perjury” during the committee’s investigation of the use of performance-enhancing drugs in baseball.

Here’s the memo.

And here’s the memo Waxman sent the Democratic members of his committee explaining the basis of his request to Mukasey. Waxman summarizes “seven sets of assertions” made by Clemens that appear to him to be contradicted by the testimony of former trainer Brian McNamee and by other evidence before the committee:

1. “that he has ‘never taken steroids or HGH [human growth hormone]'”

2. “that Mr. McNamee injected him with Lidocaine”

3. “that team trainers gave him pain injections”

4. “that he received many vitamin B-12 injections”

5. “that he never discussed HGH with Mr. McNamee”

6. “that he was not at Jose Canseco’s home from June 8 to June 10, 1998”

7. “that he was ‘never told’ about Senator Mitchell’s request [for an interview for his investigation]”

What neither memo clarifies is why Waxman is not recommending further investigation of McNamee’s testimony in light of Clemens’s testimony and other evidence before the committee. And of course the memos don’t explain why, of all the players accused of using performance-enhancing drugs in the Mitchell Report (an investigation the committee helped prompt), the committee has focused almost exclusively on Roger Clemens.

Clemens appears to be taking everything in stride, telling reporters to “get a life.”