Clemens has been at the federal courthouse on Constitution Ave. NW watching the questioning of potential panelists since the trial opened July 6. There need to be 36 qualified candidates before the two sides can narrow down the pool to 12 jurors and 4 alternates.
Of the 36 needed, 18 jurors have already been qualified.
Clemens is charged with six felonies, all revolving around him telling Congress under oath that he never used performance enhancing drugs. He maintains he was telling the truth; prosecutors say that's a lie.
Many legsl experts believe this case will come down to the testimony of Clemens's former trainer, who many experts say the ballplayer's defense will attempt to discredit.
Smithonian's Air and Space Museum was the scene of protests on Thursday as part of a national push by fast food workers for higher wages.