The first public hearing in the impeachment investigation of President Trump produced more heat than light.

House Democrats claim this impeachment process is identical to that used for Presidents Bill Clinton and Richard Nixon. This is a whopper, even for politicians. Take subpoena authority, one of the most important tools of any investigation. For Clinton and Nixon, the majority and minority had equal authority; if the other side did not cooperate, each could get permission from the committee. Today, the majority can subpoena unilaterally, but the minority must always get permission. One of these impeachments is not like the others.